Thanks for that...
found it... sometimes it is just easier to bite the bullet and save the hassle.
Getting a thin enough base fitted with two pissant runners and getting that fence 90° is just too much of a challenge... though nothing guarantees that the supplied one will be any more accurate.
For me the shipping would be a killer. I'm hoping that a bit of a SketchUp session and a few minutes on the laser may get me something useable... otherwise I'll just rely on my
Mitre Set jig on the supplied mitre gauge.
I now have enough ideas that may make trying Sketchup/laser a viable option
If your first cut is too short... Take the second cut from the longer end... LBD