Funnily enough, I have just bought two procats to test the theory!!
Procat No1 - £10.00 bargain from ebay as a parts donor... Complete minus a shell & wing..
Procat No2 - £45.95 from ebay, with loads of spares and in very good nick!!
Will be running modern electrics/cells so should be more or less as quick as the majority, cant wait to see how it goes!!!