Wingmate ??

Browsing this group seems to indicate that the Wingmate is no longer
built, so, I'm thinking of building one myself.
I trust Chip won't be offended.

If you have one, I'd be interested in learning what dimensions Chip
used . i.e. Aluminium box section size and wall thickness, and length
of each leg.
Also, a picture of the "universal joint" at the cradle junction would
useful.
Please don't ask me to build more than one. I just thing that Chip's
solution is good one, and would like to replicate for my own use.

All help appreciated.

Cheers
Mark