Hmmm. Well, if you want to swap out the fuel pump to the OEM B16 unit, it's not that expensive. I nabbed my Walbro for $150 (expensive)- I'm sure you can get an OEM B16 pump for much less than that. Installation is pretty easy too.
I honestly think you'll be ok, but I don't know the flowrates of all the Honda fuel pumps off the top of my head. I'd have to look it up... but I don't want you to try something and blow it up because I told you it would be ok.