ITR is a glove repalming/repair guy, he does great work but it's a dying art which is actually quite difficult and labor intensive (which is why the premier gear specialist, Custom Pro Repair, up in Montreal is calling it quits after years of working for the best of the best).
https://www.itrhockey.com/repair.html
For what you're describing my guess would be probably around $100 but that's just a guess. I had a pair of loves re-palmed with fancy materials and new airknit gussets and it was about $180, I would not spend that if it were a pair of gloves that are easy to come by.