It is really simple Greg but a bit scary
All I have done is to turn up a couple of ally "Top Hat" washers to fill the original bearing holes under the foot
This allows me to run a bolt through which can then be used to mount the Exo support
That bit won't harm or modify your skip footplate at all except glueing they washers in and they can be removed with a little heat and a good push
The next bit is the scary bit
The upright behind your leg (The square tube with all the hole drilled through it) is too long so you have to drill a new mounting hole about an inch higher and then saw the bottom inch off
This makes the footplate sit about an inch higher and brings the Exo springs into the same geometry as the original skip springs
So if you can source a spare set of uprights from Powerskip you can put them back as they were
Alternatively I may be able to machine the odd shorter upright if people want them but they won't be cheep
One other thing it will work with the Pro support but needs thinner washers made
This would make them much lighter but would obviously cost more
Jason