Hi Electra
I don’t think the number of legs is too important (provided there are at least 4!). It is the overall strength that matters.
Playtime is 38′ and well over 8 tons and has only ever been placed in a 4 leg cradle over 10 years.
My advice would be to talk to the cradle manufacturers and see what they recommend; then try eBay to get one second hand.
Good luck
Roger
