One of my bonds - River and Takumi - was actually done pre-Takumi's neuter and it all worked out fine. He didn't ever get overly "humpy" with her, but managed to calm her down a little as she has tons of fear aggression (even now) and was really flighty (she's more confident now). River had already been spayed, but even after a good 5 weeks in our care, she was still acting like she was entire - and that's one reason why I went that way round. I don't think their bond would have worked so easily if Takumi was already way post-neuter and hormones subsided. But of course, that's just one case.
Actually, Elphie/Helios/Selene were bonded prior to Selene's spay too, but Selene's the loveliest girl ever. She adored Elphie from the offset. I ended up also bonding Morning into them before Selene's spay, and was really lucky with it. I ended up having the whole quad at the vets for Selene's op. :lol:
Every situation's different. Hopefully the boy you like will still be there when you're ready - and as you're waiting a short while, it's all time for hormones to die down.
I had a female Thumper when I was a kid! My dad bred a litter from a black girl and a rew boy - they had black and rew babies - and Thumper, a grey fluffy thing we kept.