Thanks, just got back from looking at it. Boot has rust showing plus some repaired patches cut in from a few years ago above the tail light. Sunroof looks good, very dry as garaged and hardly used. Last service was May 16 and it still has 3k's to go to next service, so i guess only about 2k travelled since May 16.
Lots of little niggles you would expect of a 34 year old car including rev counter and vacum gauge don't work, service light still on from last service. Lots of signs of surface rust on seams, door hinges etc. Bonnent stay not working, looks to be the gas ram. Battery Tray has been patched and is primed. Dash has 3 full cracks. Drivers seat pretty tired. WOF sheets going back 10 years in car, nothing major over that time reported except rust to a middle sill which we couldn't locate so repair looks to be well done. (Unlike the boot..)
Reasonable ding in front left guard next to headlight, patch painted but nothing else.
K's are low and engine no noise, gearbox a little notchy.
Brakes are terrible, not sure if that is normal, needs a service or just lack of use.
Gut feel is to dodge it and keep looking, it is the first E30 we have physically looked at. Son is thinking at $2500 it could be worth getting then doing the engine swap you mention but for closer to $4k there are some nicer e36's around too.