a vinyl 4-inch x 4-inch post or a similar material that matches the true dimensions will fit perfectly

With a BLUETTI expansion battery

this is very doable

Serenity MP Barrel Sauna

In the event of an unexpected blackout

Laveo™ by Dry Flush Handicapped Support Rails Size_9x10 a vinyl 4-inch x 4-inchDescription Sometimes a little extra support is needed for getting up and down. This handy, lightweight support rail for the Dry Flush Portable Toilet can help in that regard. With a sturdy support structure, the handicap rail elevates the toilet, prevents accidental tip overs, and moves with ease. Dimensions: 30" 20" 6" **Please note that the picture is a representation of the item. The actual product may vary.**