Hey Jamie, Not sure why you think that T.O.P models is heavily into Nitros?, The shop also specialises in electric, They also have old stock available so Dave Vine (The owner ) may be able to help you.
If they havent got it in stock they will get it for you!!
I know they have old kyosho spares for the triumph/optima somewhere!!!!
Back onto the Hybrid discussion, Is it possible to build one from spares/old cars etc????