I would go with a candy frame and hope the bees can move horizontally. That is a drawback to TBHs in cold climates. Bees naturally move up to stores that get warmed by their heat as it is above them.
or go with a feeder right next to the cluster that they can get to without breaking.
This is a little off topic: I am building a couple of long hives (frameless) and I have ordered 2 packages of bees.
Could either of these feeders be used to help keep the comb straight?
Use three feeders spaced: 1st - 4th - 7th then two more topbars and then the follower board
If I used the candy boards. Would I still need to provide syrup?
Also; If I painted a thin layer of honey on the candy board, would that help anchor the package bees?