Ahh thats easy enough to sort though mate and doesnt have to be as perfect as the proper outside!
hello. . .do a major service as you dont know the historyall fluids. .. filters... spark plugs.... dizzy.. rotar arm.clean thottle body...all belts. . and def the cam belt as you dont know the history! then take it from there. . . might seem alot to do or pricey but could save in the long run matey.
Mk3 actually attract rust Have you checked the door sills? Common place on these buggers!Just found a deepish bit on mine :@