Should be doable from what i see on the picture.
( I use my SC2 pro with a bracket that a friend machined from a 10mm steel plate bolted to a DIY alu profile rig.)
My SC2 is limited to 20nm and that force shakes the whole rig when " going offroading"
When you try to build a desk mount I personally would make the base plate as wide as possible to spread the forces better to your desk.
Maybe you can make the base as wide or wider than your legs and safe room by inverting the clamping mechnism so that the fastening screws are ON TOP of your desk?
Or make it wide enough so that the clamps are on the sides of your legs?
Easiest way ( with the lowest "wife acceptance factor"
) would be to drill through your desk and bolt it directly to the wood. With big washers under the desk and the nuts on top it should be quite sturdy and give you the necessary leg room.
And don´t do this to an antique desk
For a SC2 you want to go as rigid as possible even when you plan to limit the FFB.
MFG Carsten