Looking at this 360 on Craigslist - Questions

Here is the link

http://orangecounty.craigslist.org/pts/5079013948.html

My plan is to slowly build it up to a 408" stroker...

A) Is '77 a bad choice of years?
B) Is $250 a fair price?

Anything else I need to know or should ask the seller?

He also has this '82

http://orangecounty.craigslist.org/pts/5079014005.html

Thanks!