Chemistry

Hey guys, Thanks to all who have helped before & to all who post great articles that have already helped. Ive done my research on these subjects & im hoping to find some clarification on a few topix.
Parts Im working with
98 dx hatch
b16a 2nd gen-All wires & most lines still on engine, unknown cams but stage 1,gsr or type r, "we just know they aren't stock"
Gsr trans non lsd( Ive got one but not confident in putting it in myself)
chipped p28 tuned for that engine ecu(slowmotion)
11.5 flywheel
Arp flywheel & clutch bolts
stage 1 organic clutch
Innovative 70a mounts & rear T bracket
1 piece 4-1 header
ECU jumper from obd2a-obd1
New upper control arms, ball joints & tie rods
GSR Axels

Parts needed or waiting for
Bolts for dust cover,starter,rear t braket bolts & trans to engine bolts.
Starter
Shift links( innovative & new bushings)
spark wires
Calipers & new lines

My questions
Ive been reading a lot on wiring & I have some past knowledge about wiring up Vtec & anything that maybe needed & I think Ive gotten more confused. I had one guy I trust tell them after its bolted in all the plugs with clip up perfect & all I will have to wire is vtec, but I don't think that's entirely true is it? I was also told I need stuff from rywire & if I don't im doing something wrong. Ive also got lost on the IVAC bypass. Any clarification on what I will need to do wiring & plug wise? Ive read about using a EX or SI engine harness to make things easier but again what I thought I knew was apparently wrong.

I have one distributor bolt missing & Honda nor autozone, napa & so on cant seem to match it up or get one without getting an entire new one. Any options? & are all b series distributor bolts the same?

Since the engine is from Tiger japan & was tuned for being in a del sol, not sure kinda trans or other mods, will I have problems say if he had a stock flywheel & mines 11.5? Or say his was a b16 trans & mines a gsr. Ive called,emailed & many other ways short of a hand written letter to the shop that's done the tune to find out what all was done but no response.

At the moment that's all I can think of, I just organized & read all of my saved forums for info & the topics though covered still left questions so please forgive me if they seem unresearched & thanks in advance to all who reply