I removed the plate with the coolant stubs from the bottom of the TB and simply cut the straight stub off:

stuck one end into one hose:

and then slipped the other hose on plus 2 new screwclamps to keep it cinched up tight:

good to go.
I plan on eventually bypassing the entire coolant circuit in the lower manifold which will cut the supply to those TB lines and they can be completely removed. but I'll wait until I pull the head so I can do it with the lower manifold removed for easy access.
in the meantime, the pictured solution will do the job.