And just in case you didn't believe the other people saying this.
Do not piece one together.
Real quick math:
Bare Hull w/ few acc $200 (and title!!!)
Motor $500-800 (650 to 701)
Pump $150
Handlepole $150 if you can find one
Right now your at a grand.
You still need a e-box, steering, waterbox, exhaust, battery, and the list goes on and on. Probably another $800 worth of crap. And then you'll pray to god that it runs after you've cobbled everything together. The bits and pieces will eat your lunch.
You can get a running Square nose 650 around here (Dallas/Fort Worth) for about $1000-$1200 all day. Sometimes with a trailer.
Use
www.searchtempest.com and search for Superjet, super jet etc. You'll find something.