Reading this, I was reminded of the story of how 37signals spun off Highrise (that was before they renames themselves Basecamp): https://signalvnoise.com/posts/3770-big-news-for-highrise => what made it easier for them was that they already had an established revenue channel that allowed them to fund the business.

In your case, I see 2 main options that you could look at:

1/ Try to find someone who would be willing to invest their own time and money to grow the business. You'll need to make it very clear to that person how they will recoup their investment.

2/ Look for a student who would be willing to tackle the challenge as part of an internship. This would still require quite a bit of supervision though.

In any case, I have to say that both options are very risky in terms of your chances of success. My question would be, why are you trying to start both companies at the same time? Wouldn't you be better off keeping this one under the radar for now, and get back to work on it later on?