I just checked, and the Canadian ones I looked at appear to be out of stock now.

The 200mm ones that I ended up ordering (and cutting to size with an angle grinder) from US Amazon were a bit rougher than the MGN9 RobotDigg rails I got for my 2.2. However, here is the link: https://www.amazon.com/gp/aw/d/B018KFFJFW?psc=1&ref=ppx_pop_mob_b_asin_title

Note: I purchased these, and immediately ordered the recommended ones from CNA "just in case." I haven't had time to play with them enough to know whether the roughness is causing any issues. I just bought these so I could build it as quickly as possible.