Patrick, Randy's correct. This is a kitbash using Sangyo-Gunze's oval 1956 VW and the Baja-kit was pirated from a Kyosho Mini-Z RC-body, no longer in production. The Resin-body from Replica Minitures of Maryland is, I Think, a resin-copy of the Kyosho-body. It has the larger rear window of a VW 1958 and later.
If You take a look in the Workbench-section there's a thread during Construction of my model.
This build is coming along GREAT!!! I really like the fact that You've kept the stock rear fenders to keep the Bug identity. About that chop, it's really well performed, but did You really chop as much as 6 mm? It sure doesn't seem that much by the pictures... Also, 6 mm is about 6 scale inches in 1/25 scale. Every millimeter is equivalent to an inch in full scale as one inch is 25,4 mm , divide that with 25 and You get 1,016 mm. Keep up that good work! I'm a big VW fan and I really like this build!