Yes, see here: Another build from Finland (inflatable)
Daniels (un)geared inflatable (slowly built) - #16 by sat_be
There are some more builds,
Not easy to get an inflatable board, ask @Jezza if he is ready with his inflatable.
Mala is difficult to get in contact.
Then there is wimsi foil: https://www.whimsifoil.com
Or from alibaba: https://m.alibaba.com/product/62017819333/New-Inflatable-hydrofoil-Foiboards-Foil-Boards.html?__sceneInfo={"type":"appDetailShare","data":{"filterKey":"7.8.2_share","cacheTime":"1800000"}}
It is not so easy to build a box for an inflatble. Although my setup works quite well, it is rather difficult to get the ESC box waterproof. Assembly also takes some time, but it is really stable due to the mast scews going through the top plate. Passive cooling is a big plus but adds some weight. If I’d start from scratch, I would put the esc inside the dry zone. What works really well, is the hatch, never had a single drop of water inside, the only drawback is max battery size that fits in.