Here's the interim solution for a propane canister on the dinghy.

If we had a hard floor of some kind, we wouldn't need to be so careful. But with an inflatable floor, we need to keep sharp (or potentially sharp) metal objects away from the dinghy.

Like This:

The orange bit at the bottom is a repurposed planter base. It had casters so you could roll your plants around. I don't know if it would be fun for a plant to move around the porch instead of just sitting in one place. Maybe it would confuse them.

I popped off the casters. Then sliced part-way through some of the structure of the plastic. I threaded some lines to hold the base onto the propane can.

It looks like it will hold together.

What's essential is keeping the metal away from the dinghy floor.

I think the rim will spread the load out, and make sure no metal comes anywhere near the floor of the dinghy.

There are some supports molded into the plastic. These tend to create little wells where water might accumulate. I drilled a hole in each one to let water run through.

The weather looks great for Monday.

N up to 15k Wind from the north, up to 15 knots, which is kind of sporty. It will clock around to the east, and drop down to 12 knots. Seas will subside from 2-4' down to 1-2'. Much less sporty. It's about a 16-hour trip. So we'll leave late in the afternoon to arrive early Tuesday morning in Biscayne Bay.