Mods I'm looking for an A5

*Opsgear MP5 sliding stock
*Opsgear MP5 gas thru mag
*Ben Tippmann 14" BT-1913 barrel kit (looks like a MP5 barrel/shroud with a weaver rail)
*Remote Coil with Slide Check Valve/quick connect for a 4500 PSI tank

I'm interested in a Tiberius 8 (for the right price) as well but not sure if I want to spend that much money yet..... too many hobbies not enough money