Hi Lucy. Nice to speak to you last night
Re bonding. I would try to bond them straight away as if they bond easily it will be good moral support for Maple.
Remember if they do bond send them both to vets when she goes for dental as bond mustnt be broken and she will feel better having him there.
If the bond doesnt go smoothly so looks like it may take longer, then split and keep them seperate til after op.
I think I would bond straight away too as then Maple will have company at the vet. I don't mean put them together the second he arrives but bond sooner rather than later. I agree with Joey and Boo though that it's important to do what feels right for you. I can't even offer to come and help with our current lockdown