$3250 sounds better, but cheap as possible is best.
It's been sitting for some time, was raced (beaten), and is mostly whole.
Personally I would go $2000 at the most.
Cost of parts to re freshen it, plus labor (even if it's yours) will add up to a few Thousand $$$$.
Tires, gaskets, seals, bearings, paints, replacement parts, missing parts, etc..... Adds up fast.
As a general rule, if you start with a whole bike, you will need about $2000 - $3000 just in parts and materials to renew it.
Yes, you could just do a few things, but there are so many little things that can fail (layshaft bearing, soft camshaft, main bearings, most things a PO touched)
I always do a full tear down. Most of the time you have it half apart to fix something, spend a little more time now while it's not damaged.
Plus it's amazing the things that have been found inside a supposed "good" bike.