Converting 2007 gem to gas power

Hello forum glad to be here.
I’m new here and willing to learn all I can about your projects and to share mine.
I have a2007 e2 that I have completely gutted of all the electrics as I’m converting my
Car to gas power
I’m done with electric cars
Has any one tried this ,I see a number of ways to achieve this
Mid mount engine with shaft drive and inline centrifical clutch
Front mount with 40 chain drive

Any thoughts out there will be appreciated

Thanks
Robert Williams

I have seen a couple for sale on ebay in the last year , all where rear wheel drive . they were almost giving them away at a low price . seems no one wanted them .

if I remember right they used motor cycle engines .