We not only work on modules, but on many tube amps. There's a lot of possibilities in the MTS amps, just ask. As time permits I may post a menu on our site.
We just did a KILLER job on a Peavey 6505+ last week. The Rhythm channel became a 59RR-based channel and the Lead was tuned similar to a Modded Ultra XL. The owner was very happy and a review and video are forthcoming. Much more affordable than you might think as well.