It is generous of you and awesome to share so much and give so much good advise. Since you are talking about thinking out of the box and dealing with big numbers I have a suggestion for increasing the odds.

Many realities start from numbers. The main reason subs are at a disadvantage is that there are so few dominant women compared to them. The reason you found a more fertile ground is that by thinking creatively you found an environment where SBs outnumber SDs.

One other way to expand the field and turn the tables is to think internationally. While at home men are seen as inferior, unfashionable, barely tolerated in most of the world American men are very well regarded, looked for and desired, especially in most of Asia, where frankly they just compare well not only in resources but in the way they treat women.

If you can afford the time for a fraction of the money you mention you could spend months or a year in Thailand where let's say that the number of opportunities would be overwhelming and where I think the concept of girlfriend experience was created. This is just one example.