There is nothing in the photo to give a sense of scale..
There are a few things.
--The whole assembly will package in a 5m fairing
--The 30 ton lifting beam is probably ~24" tall with 1.25"+ holes for shackles
--The workstand legs are probably stock extrusion, maybe 6x6 and 4x4 or 2x2
--The lifting crank on the sides of the workstand are probably 12" long
--The workstand height is probably something close to a typical desk or counter height, so 30-36"
--The cylinder is probably 1194mm
--The blue flash tape covering the exposed welds of the workstand are probably 1"
--The folds on the curtain blocking off the rest of the integration facility are probably 16-18"
--The access holes on the dispenser cylinder are probably big enough to push a hand through, so 6"?
--There's a human in the back...
Putting all that together I'd guess that these platforms are ~2-2.5m tall
A few other notes:
--This likely is, but isn't necessarily the final platform. Getting technology to work and industrializing a product configuration are potentially two different activities.
--There's a large and small octagonal feature on each unit that are the transmit and receive arrays
--The white tubey-deals behind the arrays are the optical units
--The black rectangular features are some kind of unfurlable or roll out solar array (not panels)
--The red caps at the bottom of the vehicles are probably on star trackers
--The bronze square-curvey feature at the top of the left vehicle might be a GPS antenna (there are two on on the right vehicle too)
--The white slantey panels on the top and the bottom of the vehicles (we're looking at them edgewise-ish) are probably radiators for the arrays, and they look like they have holddown mechanisms. Alternatively, they might also be sun shades...
--Given the array configuration, they probably put 8 vehicles on one of these dispensers, unspy-downsie configuration. Best guess is they can stack 3 dispensers on a f9.
