So I finally got down to business today and started the mechanical assembly. Assembling the frame and Y-axis took about 2.5 hours, give or take. I used the Prusa build instructions [here] while cross referencing the Makergear specific changes [here]. So far things have gone pretty smoothly. Getting the Y-axis to slide smoothly took a little coaxing- a lot of wiggling f the linear rods and fine tuning of the bar clamps on the ends. I think it is smooth enough to run well, but overall it is a bit finicky.