I’m including a parts list of what I was planing to use. I would like advice on it plz and thank for responding. Dsg ($1,013.55) -Top half ($126.45) -lonex 8mm gearbox ($50) -Retro arms nozzle 21.4mm ($6) -Shs tappet plate ($6.50) -Krytac cylinder head ($9.95) -Lonex ported cylinder ($18) -Slong piston head ($13) -Shs 15 tooth piston head ($12) -Evike m150 spring ($11) -Bottom half ($303.95) -Rocket 16:1 gears ($24) -Rocket dsg gear ($24) -Retro arms bushings 8mm ($14) -Prometheus anti reversal latch ($13) -Retro arms cutoff lever ($12) -Prometheus selector plate ($14) -Asg 22k motor (59.95) -G&g etu mosfet ($50) -Perun upgrade kit (G&g etu) ($56) -Speed trigger hpa (black) ($29) Matrix spring kit V2 ($8) -Hopup setup ($124.98 -Maxx model hopup me (Christmas edition) ($59.98) -G&g green bucking ($5) -Prometheus 6.03 eg barrel (260mm) ($60) -Externals ($458.17) -Sb tactical pdw stock (clone) ($42.90) -Magpul/G&p receiver (clone)($47.61) -Geissele mk4 handguard 9.5inch(clone) ($62.30) -9.5 inch outer barrel ($29) -Surefire suppressor (clone) ($45.99) -Element/surefire peq and light combo (clone) ($85.40 -eotech exps3 (clone ($39.20 -Geissele charging handle aeg (clone) ($19.99) -Pts/Magpul motor grip (clone) ($10.90) Gearbox -($430.40) Inner barrel -($124.98) Externals -($458.17) Combined -($1,013.55)