Well I have found a japanese reg for about 80 bucks... It looks new... and for 11300 yen I can get a new ADA one with a JIS fitting for my 5kg tank. I paid like 3000 yen for the tank with gas... Pretty much pay for the GAS... i know its alot more expensive then state side... but It sure beats trying to buy a tank for like 350000 yen roughly 400 usd for a 5kg. So I just need to make up my mind, and convince the wife to let me get a new reg... I guess I will post my milwaukee reg on the forum later...
If any one ever needs the info on Co2 in Japan here it is:
You can of course get the kits ada sells (23940 yen) but you will be paying 800 yen per cartridge... and like 1200 yen for an ADA bottle.
But if you want to save money go to the japanese liquor store, the one that sells kegs and ask them to rent a GA-SU BOM-BAY... when I called with my broken japanese the store clerk said that it would be an initial fee of 5000 yen plus 3000 yen. But I wen't there like 3 months later and he didn't ask for the fee.
From there if you are good at japanese try your local hardware store and try to find a CO2 Re gu lay ta... regulator... the one I went to didn't have any in stock but they had oxygen and some for welding i think argon gas or something.
auctions.yahoo.co.jp is another place to look for レギュレーター or ADA stuff.
Okinawa Bianco sells the ada one for 11500 yen P/N: 101-301 it looks like a paintball asa with a JIS fitting