Hi go directly to Jewell search Arnold Jewell and order one he will sell directly to you dealers get a discount. This way you can get exactly what you want and it will be set at the correct pressure you ask fir at the factory. You can also have a bottom or top safety ( i prefer the bottome becaise the bedding is better if you dont have to cut it away) and if you want it to come with a bolt stop. I have 4 on the way here to Australia all diferent and only 2 set to the same pressure.
Cheers Bill
Australia