What shot of nitrous are you planning on running?
I don't want to give you bad advice - so I'll be honest... I don't know much about fuel pumps. I THINK the SI doesn't pump that much more than the SI. A friend of mine is running a prelude (2.2L) fuel pump in his GSR/hatch ( to go with this larger nitrous shot). So I know for a fact that the prelude fuel pump will flow a hell of alot of fuel... 2.2L vs. 1.6L. That would be my suggestion if you want to keep honda parts. Otherwise - Ive heard people saying good things about bosch and walbro(dunno about the spelling).
Dude, I have no idea about the fuel injectors from a eclipse turbo - I guess you will have to do some research on it. A friend of mine offered to sell me his GSR injectors for a hundred bucks - for slightly larger injectors it seemed like a damn good deal - so we swapped em - and they looked identical. So, obviously, if they dont LOOK like they're gonna fit - they wont.
INTAKE MANIFOLDS/T.B.'S
The Intake manifold from an SI WILL NOT bolt up to a d-series head. Yes, I would THINK that a type R throttle body would fit onto your stock manifold... but I think it would be overkill. You dont wanna go way the hell larger - cus your engine aint made for that... it's kinda like putting 6 inch diameter pipe (2 inch diameter stock) on your exhaust - you know? The SI throttle body is something like 3 or 4 mm's larger than the EX throttle body. So, I would GUESS the type R manifold would be something crazy like 7 or 8 mm's larger than stock... see my point? The aftermarket throttle bodies made for our car specifically are about the same size as the SI. And the SI t.b. will be a WHOLE LOT cheaper than the type R... and I'm not even sure the type R t.b. would even be physically possibe... you would have to bore out your fucking intake manifold a SHITLOAD - that just fucking up the whole general design of airflow into your engine... I have no clue what the effects would be - but I wouldn't suggest you find out. Good luck.