The 2 things that boxers tend to have most trouble with in transitioning to Kyokushin are
- Making a good fist with no wrapping and no gloves
- Getting used to not punching to the face (without intending to).
Otherwise, boxing will be a boon, because you already know how to set up and deliver punches.
Can't help with you dojo question as I'm on the other side of the world!!!
Anyway - we have now reached the limit on posts in a welcome forum. I'll close it here. Hope you enjoy the rest of the forum.