so lets get down to brass tacks
first all you have a a 2240 that Crosman add some Du Da's to to make it 2300
now what you what is a 1720 trigger group and the hammer that is needed to make that trigger group work, cost 55 to 60 bucks from Crosman plus shipping
now you what more power and then you need a boss valve which are about 56 buck plus maybe shipping
now you don't what to do it so let say 15 to 20 bucks each way
and now the guy that does the up grades, i don't know 50 to 70 bucks
so you're looking at 200 give or take and that is if you bought the parts, if i were the smith i would add some for my trouble to gather the parts
so find someone and open up your wallet or maybe just maybe learn how to work on the easiest to work on pistol ever made
good luck in any case