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Hello all! I am planning on buying an em1 in the very near future. I currently have an 8th gen si that is sitting at 417whp/301tq. I plan on selling this to fund the entire build of the em1

So far i have done a hefty bit of research and have compiled this list. Although i won't be starting this build immediately i want a very rock solid idea on everything i need to get. I understand i'm new here but i have been on other forums for quite some time.

Im shooting for at least 500hp

Turbo kit im looking at: http://www.go-autoworks-store.com/gocotuki.html
Block: b18 (benson sleeved)
head: b16
Transmission: Im a bit confused here but i think i want to get an LS tranny with either a quaife or obx LSD
gsr girdle
Golden eagle ls/vtec conversion head gasket
arp head studs and rod bolts
hondata intake manifold
b16 water pump w/22teeth
b16 oil pump assebmly
Supertech valves, springs and retainers
gates timing belt
70mm skunk2 throttle body
AEM 5bolt adjustable cam gears
CP 9:1 compression pistons
Manley tuff rods
ACL rod bearings
edelbrock intake manifold
aeromotive 340lph fuel pump
ID 1k injectors
honda s300
comp stage 4 clutch
avid racing motor mounts
Aem ignition module
Tuned by evans tuning or IMW haven't decided yet.

I know a good bit about K-seires but my knowledge on b's is lacking any help is greatly appreciated!! thanks in advance