that appears to be a "GSA" adventure, from the purple wheels.
and the missing plastic side cover is $15 from bmw, I had to replace mine too.
01 46 63 7 671 732 COVERING RIGHT 0.29 1 $14.88
replace the brake hoses first, they are the most dangerous component at that age of sitting in my opinion, next to the tires of course.
the lines in the fuel tank may or may not be bad, but you can replace them all, and a new fuel pump with aftermarket stuff for under $100
I think you got a great deal!
Keep in mind that O.J. Simpson was not indicted either.
Charter member: T.O. club.