If you have a VES motor, your motor needs some serious money to get it back up and running.
You'll need the wide PTO bearing kit, the crankshaft will need to be swapped with a re-man one that has been completely trued, the extra oil line added to the case, all new bearings for the rest of the crank, new crank seals, new gaskets, new top end, the newer stainless steel VES guillotines, and a variety of other miscellaneous small parts (and a LOT of labor). If you do all the work yourself, you can likely reign the price in to keep it under $2,000.
Consider parting the sled and buying something else... The '02 through '04 VES 800 motors were a bad design and suffered badly from oiling and heating problems. I looked at a 2002 Edge X (just like my 500) rolling chassis 800 this fall. Everything was there except the crankshaft (I wouldn't have been able to avoid the core charge as a result when buying a remanufactured one) and I offered the guy $600 for the chassis (it was a bit rough with a couple of cracks in the hood and such).
Believe me when I say I don't -want- to be the bearer of bad news, but... Your best bet is to part it out and use the cash toward something else.