OK, that makes sense. Thanks guys.
Now I'm trying to figure out what corners I can cut, basically, try to source as much as possible form the USA. My preliminary build forecast is coming in at $4600, a little over $3000 of that is just engine parts, including Heads, a Power Acr ignition, Newby belt drive, and a $1600 order for rods, pistons, clubman tank and gasket set from H's. I'm basically $1500 over my desired budget.
However, I just spoke to The Bonneville Shop about T110 pistons. They said that they don't carry any performance pistons because there are too many variables in sizing and compression. He then says "I hate to send you to our competition, but Vintage Twins just got a huge shipment of overstock and NOS Brit parts." One reason I love The Bonneville Shop, if they don't have what I'm looking for, they will recommend someone from their competition to help me. So I call over to Vintage Twins and tell the guy what I have and am looking for. He starts digging thru his pile of pistons "Oh, I have a pair of Royal Enfield pistons right here. 20 over." I ask if they are Hepolite and he says yes, so I tell him "Yeah, those OE pistons are only 6.5:1. I need something between 8.5 and 10.5:1." "OK, lets see what else I have here...... Here are some AJS performance pistons that are 72mm. Let's see what's in the box; Wow, these have a really big dome! Rings are there, wrist pins are there, looks like the only thing missing is the pin clips." So after work on Monday I'm going to stop over there and have a look at these pistons and measure the skirt height and that fun stuff. With any luck they will work for me and he won't want a shit ton of money for them. If they will work and I can get them for $100/piston or less that will save me $350 right there. The only other thing I can think of is replace the rods, use the hepolite pistons and shave the cylinders 2mm or so, obviously I want to stay away from the cheap hepolite pistons, but we'll see.