Is there anywhere on the web where i can buy a balsa crankbait body and then just do the painting myself?

Jannsnetcraft and stamina both sell them.

Hit the wrong button. You will still have to ballast and place your hardware, and seal the wood and cut your lip slot at the desired angle

Lurecraft.com

Allen

lurehardware.com

lurehardware.com

I was trying to find that link after I lost my favorites.

Allen

There is a problem with those pre-made bodies.  It is very difficult to cut the lip slot exact and also very tough to drill the exact center for the balast weight.  

Marty is very correct, I even tried to make a jig to line them all up, but they are not even close enough that that will work!

If you are wanting to try painting, these same places sell plastic bodies as well. At $1 each, I paint 'em like I stole 'em, and most end up on the workbenches, given away, or used to practice on.

They do work, though, caught a lot of fish on them as well