An FI(R) with a full-time job would be very employable indeed, particualrly if he/she was self employed and could arrange his/her time accordingly. Particualrly if he/she had no aspirations to run off to the right hand seat of a people-tube at the first available opportunity.
A reliable couple of days per week would be most welcome indeed to most Clubs; progress to the removal of supervisory restrictions should be the highest priority. But don't expect to be paid much!
The demand for 'applied IF' is quite small outside commercial FTOs, so it's unlikely that anyone would fund the required course for you.
As for being employed just to support thinly-disguised joy rides ('Trial flying lessons'), that'd be the worst possible introduction for a new FI(R).