I'm wondering if there are any 1/35 Vespa scooter kits (Model 150 I think?) that would be sutable for a conversion to a Troupes Aeról Portées Mle 56? I've been googleing around an not having much luck. I also haven't been having much luck finding a 1/35 M-20 75mm recoilless rifle to strap to it...

It seems like it would be a fun little project. Any ideas?

http://en.wikipedia.org/wiki/AMCA_Troupes_Aer%C3%B3l_Port%C3%A9es_Mle._56

Tamiya had a 1/24 Vespa like scooter in their "Campus Friends" set but I don't remember ever seeing one in 1/35.

You Might repost this in the wingy-thingy forum or send Rowan Bayliss(Merlin) or Davey MacLean(Mikeli...something???) a PM. Davey is very keen on Lambrettas & if there are any in scale I bet he'd know about 'em...
Alternatively, you could use the 1/24 scooter that Al mentioned and couple it with the recoilless that comes in the AMT "Hogan's Heroe's" Jeep kit...1/25 IIRC, but who could really tell?
At any rate, best of luck with this one. I LOVE the oddballs & one-offs!

New-Ray Toys makes diecast vespas in 1/32 scale.
http://www.newrayusa.com/index.php?link=search&searchSTR=vespa