This is for you Johnaec.
You said you were interested in making up a pair of MTX200 stands to suit your XPL-200 speakers and I know you've asked for pics and measurements a long time ago but here's what I got so far.
And for anyone else that may wish attempt to make up a pair similar to those of the MTX200's.
I managed to buy a set of MTX200 stands boxed, new and unopended on e-bay a couple of years ago. Lucky to have scored these when I did. I think I paid around USD$125 to buy the stands and have them shipped over to me in OZ. Not bad I thought.
Once I received 200's late last year, I opened up all my goodies at once (eg: the stands and DX-1's as well).
The upside is that I took a pile of photos of the stands but the downside is that I forgot to take measurements of all the bits upon assembly.
Not to worry. I'll post the pics and then go about posting the measurements.