A few points:
I WOULDN'T under appreciate Myanmar's military capability. While I agree they are likely not trained well, underestimating a potential adversary can be extremely dangerous. Also on paper the BAF is seriously outgunned.
I maintain BAF and Rafale don't belong in the same sentence. The Rafale is just too expensive. Full stop.
On the other hand I totally agree with
@UKBengali. Gripen E and Eireye appear to be tailor made for Bangaldesh.
Buying the Gripen E or Gripen C equipped with AESA and the J-10C would be the best way as was stated.
The real hanger queens would be any Flankers that would be bought. Ask the Malaysians how mission ready their Flankers are.
Also, I completely agree with you that the US would be supplying BD due to her own interests which do not neccessarily mean the US supports BD in any way but more for the US to have some leverage over Mynamar and also to steer BD away from China.
However, I'm ok with that. BD gets alot out of this arrangement. Also, if you really look at it, US and BD are natural allies. Or at least not adversaries. BD is as a benign nation as there is out there, despite the internal thuggery going on in the politics of the nation now.
I wish I could have tea/coffee with you guys and discuss these issues in real life. I would be alot of fun.
Also I hate typing so I have to distill my thoughts into almost bullet points which is suboptimal.