I have used the SPEED PASSION F-68 body made for the F104 line from
TAMIYA, it fits really well and you cut out the lines for the front
suspension as they are marked out on the body for the F104.
The body posts are cut where the body sits when all squared up. There
are also four different types of nose cones and 2 different rear air dam
wings, not shown. I like the look it gives to the SERPENT F1.