1959 vespa 150GS 491 original miles

Just bought a 1959 150gs vs5 with ''' no engine'''... I want to run a modern engine without tearing up the original chassis. but still look original as possible  for normal riding

Hi there,

 

in this case you only need a small adaption frame to fit a "largeframe-type" Vespa engine in your 150 GS.

http://www.sip-scootershop.com/de/products/adapter+serie+pro+motorschwi_63009000