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