Guillotine cutting guide

I have a Linic guillotine for cutting styene stips to use in model building. The problem with it is that there is not length stop to ensure that I can cut multiple strips to the same length.
This is cut from 3mm and 5mm material. The photos show MDF and ply but experience shows that ply would be better for all of it.

I cut the bolt head trapping section to fit a bold that I had, obviously this can be modified to suit yours. Glue the bolt head, the piece with he the hole and lugs and the blan