I am currently renting a Prusa XL. I built it with a postdoc student around this time a year ago. Since he’s too busy pursuing now nonexistent government grants for his startup to operate the printer, we’ve come to an arrangement– I can hold on to it in exchange for a few hundred dollars, all labor and maintenance of the thing, and the institutional knowledge on how to work probably the largest and most complex 3D printer commercially available today.