Stephen .... that would be a chap called Pollock-Hill

Sorry, just couldn't resist that open goal

The serious answer I think would be that only a guarantee of funding the museum for a given numbers of years (say 5), and for a serious amount percentage wise, would likely be looked at by DMBC. There are other ideas, which I am sure will be coming onto your radar soon Stephen.
As for the tourism aspect, I have been talking about this on a number of occasions, but I fear that housing is far more in line with current council thinking - despite the current situation. Certainly, their views about the proposed
Glass Quarter, which they are about to push through, seem more aligned to reducing the industry in the locality in favour of housing.
They have also albut abandoned the glass industry, both current and historical if you read the Supplementary Planning Document concerning the Glass Quarter. This goes to a council planning meeting on the 18th September (and I believe has to have comment by interested parties by the end of the month).
Heritage is apparently not their bag, despite its obvious use as a draw for visitors, and hence helping regenerate the locality and bringing much needed income to the area.
One chairman of an association observed that it was a shame that it was Dudley that we had to deal with. They have no vision, certainly not the sort that might come from a metropolis like Liverpool or Birmingham. To be fair they also don't have the income, but, so far, they have also steadfastly avoided taking up the offer(s) of help made by the various campaign bodies - so illustrating a complete lack of vision, or inquisitiveness about what might be on offer.
Nigel