Ever use a purse as a sporran ?

[Woodsman]

I wouldn't. With Scottish made sporrans starting at $45 or so, I would use "the right tool for the right job" and get a proper sporran.

For the belt, I'd probably go wthout a belt (as it's not really completely NECESSARY to wear a belt with a kilt) before I wore woman's belt.

To each their own, but that's my $.02, FWIW.

I agree with Rocky here. I purchased a Rob Roy sporran from his store for my USAKilts' casual kilt and I couldn't be happier with the look. It was well worth the price. The only other viable option I could see would be an attempt to make your own sporran.
Woodsman