no offence mate but who puts wolfrace alloys on a scooby?they are for saxo's and corsa's only.
plus it will need a new maf sensor soon now that its got an induction kit fitted.jap imports tend not to rust that much,uk cars aint that bad either compared to fords ect,only thing that will cause problems is the fuel filler pipe.
sounds like its been boy racered to me (wide arch kit,wolfrace,induction kit,stickers) thats just me tho
apart from the obvious,check for the problems as listed above
just remember mate mileage aint everything with scoobs,i could import a car with 30k on the clock and constantly thrash it for 10k,sell it at 40k miles and no-one would ever guess untill it blows.
welcome to the forum mate