I'm 6' and have a 35" inseam. Both the Atlantis and LHT are too long for my preference. I like a frame in the 61-63cm range with about a 57.5cm top tube and a stem length between 90 and 110mm depending upon exactly where the ST and TT lengths end up. Old bikes usually fit me much better than most new ones. Current sizing bias on most off-the-shelf bikes tends to be towards a stretched out position for men with long torsos.

There is some thinking that not only do women tend to have short torsos, but they balance differently necessitating even shorter lengths. If that's true, the lengths above might still be too short for you.

Even with all of that, variables like your fitness, use and personal preferences make all the difference. Measurements just aren't enough.

A lot of people are recommending Mercian or Bob Jackson for custom tourers recently, but I'm the only one around here who I know actually owns one and mine's not a tourer. It's worth considering, but I don't know of anyone with first-hand experience touring with one. If the $2k you quoted is for a complete bike, not just frameset, then Mercian or BJ may be your only custom options.

My touring bike is 1986 Trek 620 with a modern 8-speed drivetrain. It fits and works great. I wouldn't hesitate to take it on a half-year tour.