You need to clarify the 4-5K per month, its being assumed it's US Dollars. If it were Rupees or Yen then I'd get your point and suggest you sell the revenue so

You need to clarify the 4-5K per month, its being assumed it's US Dollars. If it were Rupees or Yen then I'd get your point and suggest you sell the revenue source. But do it in a way that works as a double win. Find a development shop that will take you on part time and buy the tool. You'll get a lump sum and a steady job, they'll get a proven money maker and motivated employee. This is one of those nice problems to have. In the mean time, get community member(s) to be a bug triager and forum voice. Communicate through them.