I see you are going for THE BEST reg. You will have to send you tank to AGD and they will install it for you (liablity issues and safety) on your tank. ANY 4500 TANK.
Your first problem is you have a ULT.
You NEED a standard ON/OFF to get the bounce you want.
The ULT was MADE to give a softer pull without bounce for tournies.
My RTs get crazy bounce with a standard On/OFF At about 650-750 psi.
Do not go above in max pressure it will just vent from the reg and possibly harm your marker or you.
Remember we are talking 900lbs per square inch (a Half ton pushing) on EVERY square inch of valve. Your tank 4500lbs/SQ.in a proverbial bomb or missile if you rupture it.
SAFETY first. Dont get hurt. If you do then you cant play and I cant Tag your Butt.