My piece together turbo kit

[240sx1234]

Alright ive been reading the ka24det FAQ and have a few questions along with wanting peoples objections and comments on what I want to run. I just want to make around 220-240 hp on stock internals with around 160k.before I proceed I do plan on getting the compression checked to make sure everything is good to go.here's what I have so far

Edit:also what do I need to do about the whole egr system?
T25
Pretty big FMIC
IC piping
Oil sandwich plate with line
Oil and coolant line on the turbo
Elbow
Bottom mount manifold
Blitz bov
Knockoff hks filter
N62 maf
Tapped oil pan
370cc injectors
AEM wideband
Autometer:
Boost
Oil pressure
Water temp
apexi safc
Hks hi power catback
Downpipe
Turbo elbow

By the way it's a 97,and apologize for being unorganized because it's on my phone and hard to move around to add stuff

should I replace my knock sensor before or while doing this?the CEL is on now cause of it
I need a good places to get new gaskets
Im going to get a walboro 255 for sure.should i invest in an aftermarket Fpr?where can I find a hose to hook up the sensor for the water temp gauge?comments are greatly appreciated.I'm also planning on getting it towed to get it tuned somewhere in Alabama