Creative_Asylum created this but never tested it and it needed adjustment. It now fits cleanly.

Here's their part: https://www.thingiverse.com/thing:4589175/comments

This is the front bar relocator: https://www.thingiverse.com/thing:4410969

The Y-tensioner itself: https://www.thingiverse.com/thing:4128826/remixes

Mirror for the other side.