I've got a 41 Willy's with an Alson Tube chassis. The rear fenders are installed, but with pop rivets, the front end is lift off, seperate hood. My has all the front inter fender wells/seperate pieces, all interior moldings, etc. can be run on the street or drag. mine didn't come with floors, but did come with firewall. i don't see much difference, you can still put 14" tires under stock rear fenders, atleast with the chassis that i have. it's an A/arm front and 4 link back. It is for sale (please guys this is not an add) as i said i don't see a lot of difference.
JMO
Zip.