I did something similar with my lathe, which weighs in at about 5k. I used machinist skates (4) under the machine (similar to these:
https://www.sunbeltrentals.com/equipment/detail/1217/0440060/8-ton-rigger/).
I was able to get a bottle jack under the bed to lift it onto them, though you don't seem to have that luxury. If I were to do it again, I'd use either these:
Rigger rollers are ideal for moving heavy objects with ease for variety of operations and applications. This option is great for installing and fabricating pipe in pipe racks or other tight and enclosed areas. This set has a 3-point system instead of a tradition 4-point system to provide better...
www.sunbeltrentals.com
Or, if you have a friend to help you out, these:
https://www.sunbeltrentals.com/equipment/detail/1218/0440080/3-ton-roll-a-lift/
EDIT: The nice part about the last option is I think the required clearance is lower than some 'feet'. SO, lift it, remove the blocks and put feet on it, then move with these and put it down on the blocks.