if folks have any interest, I have begun to map out the "cutout" for various machine for this kind of project.
My layouts include the location of the wheel/belt holes as well.
It started as a MUTT project, but kinda morphed into a "identify that treadle top" kinda thing.
So far I have the cutout layouts drafted for;
Howe A
Howe B
White VS1
Wheeler Wilson 8
Wheeler Wilson 12
If you have any with measurement to share let me know by PM (or email if you have it)
If you need one, PM me as well.