Thanks for the fitting advice, I will be sure to get that done ASAP, and before any final decisions. Those three bikes do have very similar geometry. I think it will just come down to making swaps if and as needed with the bars, seat, cranks and pedals. I did check out Ti frames and the bikes you mentioned, but unfortunately they are beyond my budget. Thanks for the well wishes, I really appreciate it.
Another thing I should have mentioned, and will go back an add to my OP, is that depending on which bike I get and what bars come stock, I'll be swapping them out to either a Trekking bar or a Jones H-Loop. And I know that will take some additional work and likely swapping out the controls to make them work.