Mine would be pretty close. The way I figure it...
20k for the kit
Parts needed
5k for a drop out
Engine
Transmission
500 drop out Rear End
2k Wheels and Tires
1k Paint Supplies
I am able to do all body and paint along with assembly.
Total
$28,500
With all of the things that come up I really think I could do one for less than 30k.