what kinda tapes were used (sony which is wet lube) or anything other brand (which is dry lube). so you know how to proceed in the type of tapes you'll be using. of course u can get it professionally cleaned and then start using any tape u want.
Ask what is wrong with it ...if there are any problems.
was it used for capturing alot?
if he's local ask if u can test it out. inspect it thoroughly.