Onefinity Z-16 to Z-20 Upgrade Pack

The kit works as designed, the kit was of decent quality and included all the parts needed, and I am glad I bought it.
However, since the Z-20 has more range and the spindle is much longer than the trim router, the support legs should be longer. I have added spaces to raise Onefinity 2" above the spoil board. With the spindle mount at the top of the Z-20 travel I set the spindle so that the collet aligns with the bottom of the Z-20. Now when the Z-20 travel is at the bottom the collet is just 1" above the spoilboard. This allows for machining a depth of about 5" without resetting. Of course the PwnCNC is not intended for such Z travel but when I do machine flat 1" thick parts, the support legs don't reach down far enough.
A first cut desing idea would be to make the support legs as long as the Z-20 slot.

Still waiting on my machine.... Quality is good like all items I have got.