Honestly, just get the top of the block drilled and tapped and all is well.
I am a rapid-ist also, but once the top block BTAS mod is done, its just as secure as the old tractor.
Mine has been apart at least a million times with all the modifications and cerakoting etc, but when you put it all back together it still hits what you point it at with a boring monotony....I swear sometimes I can hear it shout "Gleichschaltung" and "Sieg Heil" as it voices encouragement to the pellets mid flight
Theoben TTR1 .177, Steven B Blue/Grey Laminate Stock, Nutshot Mod, Hawke Sidewinder 10x42 Tac IR
Daystate Pulsar. 177, Donny FL Sumo Mod, Pard NV008LRF