I drove 1985/86 VW diesels for years-loved them until I got into MB. I still have a 1985 VW golf that a teacher drove. Damn dependable car still !!
Most VW diesels sell for $600-$900

Motor mounts are not hard on a 1985/86 VW and can be done in your driveway with a jack in a few hours.

Here are two great sources for both tech help on VWs and parts.

The "PartsPlace " in Michigan cannot be beat for tech support assistance and shipping of parts.

http://www.partsplaceinc.com/

Another good place

http://www.vwdieselparts.com/