Sounds like the perfect LSA. As pointed out earlier, you have enough displacement already for all the low end power you will ever need. Hell, you are going to need bigger and more sticky tires now. When I got my '69 912 new suspension I had it corner balanced and with me in the car the total weight was 2237 lbs. I got a motor from a dune buggy reworked for the street the T1 2276 with the webcam 86b and was going to use the T1 as temp motor for the 912 while I decided what to do with the original 912 engine. But in hind site, I should have went T4. That T1 motor ended up in my garage and my wife kept tripping over it trying to get to things - even though the motor was on the side of the garaged and tucked away. So I found a home for the T1 by buying a Speedster. Long story short, I should have built a T4 like yours from the start for my 912 Renegade build. John Willhoit offers a 912 2.2 build and the kit alone starts at $16K. But we aren't talking Porsche, sorry I digress. If I didn't already commit to a full rebuild of my 912 616 motor, I would have been a player for your engine.