You could lift it off the wheels using a cam system
What's the problem you're trying to solve Craig? Stability?
I think it would be fine, the only issue would be the need to crank the all-thread up and down so far. But you could loctite/weld a nut on the end and use a cordless drill to spin it up and down.
We are talking 500+ lbs here? How would a cam lock once it's raised? Got an example?
I have looked at these before:
Theia Technical Heavy Duty Industry Levelling Caster Wheels Swivel Plate Mounted Stem Castors Retractable |Vertical Adjust| Footmaster FML-80F 4 Pack https://www.amazon.ca/dp/B08R7RPYK6/ref=cm_sw_r_cp_api_glt_i_ZBABPDEXY2CA9E7G5X95
View attachment 14572See if you can follow me- cut or make a steel foot, 1-2” diameter maybe 1/4” thick or more. Drill the center out to 5/8”. Weld a G8 bolt from the bottom all inside that 5/8” hole. That leaves you all 6 flats for a wrench.
You may need to cut the threads longer on the bolt but thread on a regular nut then thread the bolt into the coupling nut
Now you can use a wrench to Jack the shaper off the floor and level it how you want it. Then tighten up the jam nut and it should never move