I'm a little baffled by your first paragraph. Have you been working for a company part-time for an entire year and have never received compensation from a company that is clearly bringing in revenue?
If you like the work/company that much, clearly 7.5% of $X,XXX is greater than 100% of $0. And you'll still be part-time to pursue other things/ideas/etc.
If you like the work/company that much, clearly 7.5% of $X,XXX is greater than 100% of $0. And you'll still be part-time to pursue other things/ideas/etc.