The nightmare of being an independent researcher
Firstly, 5 papers on completion of your Masters is pretty good (for comparison, I had 1 rejected paper at that stage).  Even though they are in different areas, they demonstrate your researching skills.

Secondly, in regards to the PhD and in particular, funding - I have a few suggestions:


Research not only what the academics' specialities are, but also the scholarship/funding opportunities that the universities have on offer.
Contact the academics, asking about their research, this way you'll express your interest without giving away all of your ideas.  Once you build a rapport with the academics, then enquire about co-authoring a paper.
Perhaps look into working at a university (library, research assistant etc), so, look at the job opportunities.
most of all, don't give up!


This is, by no means an exhaustive list and I am sure, other members here will provide more in depth answers, but it something to think about.