Thanks Brian,
You are correct, I didn’t want a dimmable module, thanks for pointing that out. After my last post I actual found the 2634-222 which seems to be aimed at outdoor use which seems like the best option for low voltage lighting.
And again you are correct I have two separate manual switches and I want them to control each other (i.e. turn either on and both go on, turn either off and they both go off). The two manual switches are not 3 ways switches.
And finally, I have verified that both boxes have line, load and neutral.
Thanks again for the help and the patience as I figure this stuff out.