Now theres a question, theres a lot of "what ifs" and whats it "gunna do" The two main considerations are power and shaft run out. Which leads to bigger size and cost......

I would have thought you'd be ok with a good quality router above 1200W

I have sort of fallen out with the igus bearings haha, the difference between them being sort of moving and locking up was half a screw turn on one of the carriages.
I had the same problem setting the ways on my lathe and x-y table, after a bit of practice it got easier. The biggest killer was the fiction caused to remove the backlash in the leadscrew. So from now on I will only use bearing rails and ballscrews.

Hows the rest of the machine going?