Looks like someone needs a valve cover gasket $15 and should get rid of that oil leaking down behind the header son
and $3700 aint bad, if he has papers for the motor, its riced, but nothing that can't be reversed with some simple tools for example: lime green painted everything, painted vents, fart can exhaust, fat whale tail wing, painted drums, i would scoop it up (if the motor is legit) and put some different rims and sell those on craigslist, buy some 99-00 taillights, some $12 black stock windshield wipers, and that should put you back to stock, and when you mean wobbly shifter you mean when its in gear and it wobbles from side to side, thats normal