Hi Jac / Terry, I was going to look for a Jappa ring gear that was around the 10" diameter and most of these use the Hitachi geared starter motor so they have plenty of grunt in a compact unit. I even toyed with the idea of not running a starter at all so I could make a small flywheel and run the 7.5" triple plate clutch, then use a remote starter on the back of the gearbox like the Indy and F1 cars do. The only issue is if you stall or spin off and don't keep the engine running its a pain having to get a tow or someone to come out with your starter pack. To get the engine low enough I will end up with 5" from crank centre to Bottom of sump. A question for you guys, If I was to run a wide full length sump such as they use on boat engines, baffled and trap doors would it be possible to run a wet sump that shallow. I know you guys are going to say " WHY !!" the short answer is cost. The second is I don't want anything belt driven off the front of the engine, I'm going to run the fuel pump off the cam and water pump off the crank the same as they do on sprint cars. I may run the water pump off the cam as well, there are water pumps that you can run the fuel pump as well. Sprint cars also run the dry sump pump off the cam with the fuel pump but I don't have that much room unless its only 2 or 3 stage oil pump. My other thought was an internal dry sump system, Barns used to do them and they are a very simple 2 stage pump, 1 scavenge to the tank and 1 suction back to the engine. Interested in your thoughts, Please don't shoot me for my out of the box thinking. cheers Leon