When? I'm glad you asked me, because I realize northern NM in early spring could be tricky, it would definitely rule out the Chama River area unless we wanted to deal with slick, muddy, energy robbing mush, and potentially snowy conditions.
Central NM would be "OK", but it is the windy season and a bit of a gamble. Temperature wise early spring is great, but the winds can rip across the open landscape relentlessly and do a number on you.
I'm thinking that riding from Grants, NM south along the Great Divide Route would be a nice route possibility. We could ride from Grants, NM (83 miles from ABQ) south into Silver City, NM (230 miles appx), passing through the sweet little village Pie Town, NM on the way. This is a popular riding section and logistically quite easy.
Just some ideas. I'm not set on the time frame, if we want to push it back to late spring/early summer and do something up north closer to you Brendan, that's fine by me. Maybe meet somewhere in the middle.