I have a friend with a 99 Integra LS, and I have a 97 Supra N/A (2JZ-GE), and I'm about to buy a new engine because I an going to get a twinturbo (2JZ-GTE) engine because of how strong the stock internals are. My friend and I were thinking about my engine swap and future plans of mine, when he asked me if my old engine would be possible to fit into his integra. I know that if it is able to go in there will be problems with weigh balance and crazy amounts of understeer, but I am wondering if the engine would even fit in the first place. I know a lot of parts will have to be cut and/or removed in the engine bay and relocated. I know it is going to be a ***** to convert this from a FWD to a RWD, or possible keep it FWD. He is drawing up sketches of how the engine will be fitted in the back. because this engine is naturally aspirated, no air is necessary to the turbo side so maybe the engine could be mounted horizontally, like a flat 6, and get a widebody kit for the integra to clear the engine.
But he is very serious about this and looking very foward to making this a reality, are is looking at every part he needs to make it possible. (Transmission, axels, suspension, etc.) We also know it will cost a hugh sum of money, but when replying, please just ingore that factor. Any replies would be great. Thanks.

PS- getting this project done is worth a lott more than money.