looking to buy a 1993 MPV coments pls

Hello all New member I have been looking for a little pick up but todaay on local craigs list  I sotted a 1993  MPV  mini van with 82,000 miles on it. Owner stated it runs and drives great but onced warmed up  coolant  leaks out of water pump weep hole!  Ok Im pretty mechnica and have a Saab 900 and a few motorcycles  metric tools. So it looks like this thing will need a waper pump.  any do it your selfers   ever replace a water pump a 1993 or so MPV?  There no rush on the job I want thr MPV to take my dogs   Two big dogs  lab and shepard  up to a friends camp and let them swim im a litle river. I dont want to haul them in the saab. and get them used to riding in the MPV  ao it wont be a daily driver. It is pa state saftey inspected and passed a Pa state emission test   He want $500 Bucks Im a semi disabled Vietnam veteran  and dont have a lot of money, So is the MPV  worth fight with it to do a water pump i price a watr pump sor about$60  bucks  what do you think?   Thanks