My advice would be to finish the ones you've got at the moment and then buy the Piaggio and take it SLOWLY. Paint all the details, paint the men if there are any and try and do the best job you can. There's no point in banging it together and thinking how it could be better
But due to strategic parental bombing I have been unable to complete the Fiat G.50, So I made the Komet in about 15 mins. Its got me nowhere though, I still need paint
It's your call, but I really wouldn't go for something like that myself.
You really do need to have a lot of experience with that one. TaffOne (Caseyjay) would be probably be able to make it, but he's built things like vacuform kits, which are fearsomely difficult.
Speaking candidly - I think you'll end up with a very expensive mess.