All I know: it's difficult. People try to sort out financial sponsors before they ordain. Some have spared money from good jobs in their former life - then they donate it to an organazition of lay people who take care financially of the ordained. Some say they want to ordain but they can't because of having no funds.
There are some good lay people who work in building up an organization that supports monks and nuns in general. It is starting since two years.
Yes, people from Hamburg try to start something like this in northern Germany. Our community is not small but I don't know, if they can fix the problem with donations only or if they have to find further ideas for fundraising.I think this problem with western monastics not having funds, could be partly elevated if there were bigger organizations that would get funded by people and monastics would get money from that organization and maybe spend some time developing it and running it among other things. What would the organization offer in exchange for the money I don't know, maybe pujas, maybe ritual items, not sure. But there are ofcourse many problems with it.
I believe there would be need for either huge sangha running it or several smaller sanghas running it together with lay memebers as a part of the organization maybe as some sort of balance. Well enough of brainstorming.
Another point is education - I think it is very good, when nuns as well get supported for studies. I think its wonderful that the Geshema-education started and that there are going to be more female Geshes.
In our certain sangha there are less western monks but many nuns. The monks are allowed to disrobe three times, while the women cannot get their robes back once they left. This seems to bring the result that all the nuns stay - whatever challenge they have to face - while the monks disrobe easier and they do not come back.
It seems to be a great psychological difficulty, if an ordained has to work for his/her livelyhood. They have to switch daily between two worlds and then sometimes they give up and disrobe.