Disclaimer: I do not carry or even pick up much weighty gear at more.

however, in the past, I once did rig-up a wood tripod with heavy duty dog collars to secure the legs together and a couple of stout camera bag straps clipped on as shoulder straps.

Not as elegant as the OP.

Later on, I got a LowePro camera backpack with a tripod cup and cinching straps.