RAISING FLOATING BOAT DOCK

Looking for information from anyone who may have knowledge or experience of "how to raise a
Boat House" to change flotation out. Am needing to change tank type floats to black POLY flotations. Approximate size is 26' x 26' which includes 1 pontoon stall. Would appreciate any and all responses. THANKYOU.

Slide a large tractor inner tube under air it up change floatation Worked on a duck blind to change barrels One guy used a air mattress..

Thank you for reply.