Sorry to say this BUT I (taken the basic idea off someone else) already made a tool/item to aid inflating tubeless tyres and it's great! makes my life so much easier when I have to change 2 or 3 pairs of tyres track side because it rained over night!
Just for this thread lets call it "FTR inflater" (I don't have a name for it as it works)
The FTR inflater is a conversion of another older version of a "item"/part (the newer vision are every where but can't be re-inflated/presurred) that is out there,
it is very potable, small(ish) and and be reused/pressurised in a field with a normal track pump and when topped up/pressurised it can do 2 tyres easy with out topping up again.
I have also looked into selling "FTR Inflater" after converting them ready for use. (still on the back burner)
BUT I do have a few issues; (more to cover my ass when selling to the public!)
As a pressurised "item" (even if we say a max of 150psi) does the "item" need to have a pressuration check and certification? (I would leak test it at a min, pressure it & put in tub of water type check)
Note, item be non pressurised when sent.
Finding enough of the older "item" version, newer ones I feel can be converted (drill a hole, tap and thread part in) but need a bit of extra work & cost in parts, but then it will bring the first issue into account even more
The cost of "item" (I have tried to find cost of item but not much luck, also min number order but got a rough idea based on a "new" item)
The "item" state, I would feel they would need sand blasting blasting and a re-spaying, adding cost.
Rough cost I worked out is looking about £65-£75 maybe a bit depending on hose fitting etc. So might be a bit high for some people?
If I bring sand blasting and painting "in house" might be cheaper.
I been using mine for over 3 years so it is a long lasting item.
The biggest issue it the first one.
If anyone knows me and knows what "item" is, please keep it to yourself as I think it might be fun to see what people will guess the "item" is!