Right on. That’s pretty much what I’m doing, and it’s about that much ya.
I accidentally used a priority express envelope once and they wanted an extra $30 at delivery. D’oh.
You can buy 100 MMBF5457 from Mouser or DigiKey for around $25 and match them with a DC75 if you have one. I made a little testing jig to do just that and it worked and sounded great.