Well a bit behind schedule, weather has been very wet. I have removed the grass and levelled the area best I could, got the concrete pad frames in place, level as can be, concrete will be levelled when poured.
Still have to backfill the outside of the boxes with mud so it is level with the concrete when it's poured in.
I have decided to use the NPRM, Going to lay out 4 concrete pads for each 'leg' and then bolt it down, then pop some slabs in it on top. One of the 'pads' will share with the larger pad of another dish, So will end up being 3 pads dedicated to it.
From left to right in these views, 1.5m Gibby, 1.8m Raven with Tripod mount, 1.8m Raven with the NPRM