1987 Range Rover Classic with LT230 and 3.9L Engine Rust Free Nevada Vehicle

1987 Land Rover Range Rover Description

I purchased this vehicle from a friend in Las Vegas and shipped it to Georgia. I went through it front to back, serviced the plugs, wires, distributor cap, rotor button, front axles + swivels, rear axles, transmission fluid and internal filter, new v-belts, etc. Everything was running amazing. I drove it to D.C. and it ran flawlessly. Seats work, cruise control works, A/C is ice cold. Shifts great (new transmission less than 40,000 miles ago). Sunroof works and does not leak.
I put new tires on it and changed the valve cover gaskets. While I had them off I powder coated the valve covers. As soon as I got it buttoned back up I had this sporadic idle. I changed the stepper motor and no luck. I couldn't figure it out so I towed it to a rover mechanic here in the area. He drug his feet for over a month, changed the intake gasket, and it has the same problem. Known good parts were swapped to try to locate the issue so the following have been ruled out: distributor, computer, stepper motor, TPS.
I am frustrated so get a great deal. If you are local come by and see it, if you are out of state I will help get the vehicle loaded on a shipper if needed as long as it is close by. This could be something as simple as a sensor or even a broken wire. I'm not going to gamble anymore money. I'll be super honest, just contact me.
Slight weep of Transfer case gear oil, but not enough to even show as low on the 500+ mile trip from Ga to D.C. I made last month. Small pings and tiny dents on side of vehicle. Seats are cloth and are in great shape. Front seats look as good as back, but put covers on to protect them.
I have over $22k in receipts from the past owners. This vehicle was well loved. It had a engine swap done at 200,000, but I cannot locate the receipt. It was done by a rover expert up in Seattle, but again I can't locate it. Contact me if you want specific receipts or info. I do have receipts for the following:

Most work done by : Kensington Motor Cars Las Vegas, Euro Asian Motor Works Las Vegas, Land Rover Las Vegas,

05/22/2008 check vehicle charging system, remove aftermarket alarm, perform 30k service, all drivetrain fluid changed, spark plugs, coolant, diff fluid, transmission fluid, t case fluid, fule injection and air intake service, driver seat motor changed, front and rear brake pads, repack wheel bearings, engine ecu installed, sunroof resealed, $2795.50

10/23/2008 bosch coil and ingnition module, coil, distributor, modul, harness $635.00

1/4/2010 dampner, air rear, shocks, $386.00

1/22/ 2010 shocks and steering dampner and cruise control actuator installation, parts supplied by customer $439.95

5/21/2010 New ZF transmission from Atlantic british, alighnment, exhaust flange, diff oil, transfer gear oil, etc. $5583.01

06/18/2010 Steering box panhard bushing, r&R steering cassette, $1729.95

7/23/2010 oil change, spiral cassette replaced used, steering dampner replaced and aligned vehicle, ignition lock assembly replaced and vehicle rekeyed to match, a/c hose, drier, Freon, replaced intake gasket and valve cover gasket, etc. $3506.96

09/03/2010 Hella fog lamp kit, light bar, hella 4000 harness $1160.23

10/15/2010 transmission replace reassemble transfer case input gear, refill, $935.70

11/12/2010 resealed transfer box, wirring for bumper lights, water pump, $833.38

12/23/2010 oil change, panhard rod bushin, steering rod bushing, drop arm knuckle alignment, replaced both oanhard rod ushings, drop arm knuckles, and three steering rod ends, upper radiator hose, amber driving lamp kit, left front swivel seal kit, engine mounts, engine oil cooler hose, used quarter panel, rear bumper and end cap, right rear lamp, $2326.37

2/04/2011 washer check valve, replaced right side headlight, paint for right rear quarter panel $375.54

06/06/2011 realigned vehicle, adjust swivel pre-load $449.25

08/18/2011 replaced all V-belts, headlamp washer jet, $177.48

10/17/2011 Replace headlight washer jet, rear brakes, oil change $371.29

4/17/2012 oil change, a/c condenser fan motor, a/c condensers $1250.82

10/31/2016 New Battery $140.47

2017 spark plugs, a/c system fittings and recharge, all fluids (diff, transfer case, internal filter transmission, etc), new tires, new v-belts, etc. +/- $1200