I think we can pull this off. In the cricketing world, after India, Bangladesh has the biggest audience market (Pak too but no foreign players will go there now).
SL also tried to come up with their own version but they relied too much of BCCI. The Indian companies would be much more willing to invest in Bdeshi market which is 4-5 times bigger than SL market.
But I won't support all matches to be played at Dhaka. They should make divisional franchises and make games in home-away format. In that way all the matches will be sold out.