i got 2 cb 650's both from 1980...
one i made into a sort of "bobber" ,see>
http://forums.sohc4.net/index.php?topic=36933.0the other one i just bought for 400 bucks,and is probably waiting the same like faith,not excacly the same but same style...
if you have room,tools and time on your hands you could for sure make it your project..
its a great way of getting to know your bike and make it your own,with some mod's and so..
technical advise and help you can find on this forum on every single detail of the bike,just drop a line and you get all the answers...
you do have to realize that by taking your bike apart,that you might end up with some cost and problems on the way... be prepared or willing to spend a few bucks here and there..
they are not a complicated bike to work on and victory and bragging rights will be yours as you drive your new project over the road the next spring...
i would say,go for it........