www.car-part.com is where I'd go to buy a good used mirror. Passenger mirror is the right side.
Body > Mirror, Door (Front)
There are 3 options depending on your vehicles trim.
Most places will ship. Call, ask for photos.
There will also be significantly more reassembling involved, which includes either crimping pins to the connector (hopefully you have purchased those as well) or soldering and heat shrinking the cut wiring. If it was me I would return the parts and buy a complete unit, and I’m capable of doing the soldering and/or crimping.
If we can’t sway you to purchase the assembly, I have not seen any posts on this forum regarding what you’re asking for. My advice will be look up a YouTube video because removing a mirror and actuator shouldn’t be significantly different one Honda to another.
I wish you the best getting your mirror and actuator fixed.