Tanaka m700 aics tightbore

[Python]

Hey guys finally got my hands on a tanaka m700 aics preban and am now ready to dump endless amounts of money into it. I want to put a king arms hop up conversion kit in to convert to vsr-10 the use a fire fly buckings and a edgi 6.01 or 6.00 barrel. What do you think? also theres one problem Ive been able to find everything but the edgi tightbore in stock, do you guys know of a place were I could find one, ive gone to the edgi website and gone to every distributer they have, nothing is in stock. Is there an alternative tightbore that would work just as good? I want the best think I can put into the gun. Also im thinking about getting the g&g power pack does it make a difference? then i think all i can do is a HPA rig. thanks for all the input.