Just back from viewing it and here`s the basic run down of what I found:
oil looked o.k but water (in rad) was a bit milky: had this before (but the other way round) ina Pug 405 and it was condensation due to short journeys.
some rust on n/s/f inner wing under the bitumen(?) close to the battery department.
unable to inspect nearside of car as parked against hedge.
from what I could see of fuel tank it didn`t look like it had sucked in.
owner says it used to run along fine and only had problems at junctions/pulling away from stop when it `felt like a fuel problem`. It then got him home and never started again despite a handful of attempts though he may have flooded it at the time.
electric windows and sunroof, red pinstripe interior-driver`s seat looked mint, rest buried under all the junk in the car.
exhaust is touching floor and will (in my opinion) rip off just getting it out of his drive.
evidence of an oil leak.
bodywork pretty good but a few knocks/scrapes.
I`ll be having a bid on it at some point but won`t be going mad as it`s quite a bit of work even just getting it back. Lack of MOT etc doesn`t help either, could be a bottomless pit to lob money into

Vauxhall apologist.