Awesome. I have a number of my signed jersey's signed and had them custom framed. Here's two of them to share with you and give you some ideas with your Horry and Gilmore jersey's
Rodman. This was probably one of my first jersey's ever framed, had a game used Bulls ticket from the MJ, Pippen and Rodman era, limited edition 3-peat Bull medallion, a 16x20 photo of Rodman doing what he does best and a signed card. I wouldn't frame any signed cards again as the UV rays fade the signature. Silly move but like I said was one of my first jersey's to get framed.
And Kobe. This one is the UDA Championship Edition. Had a game issued ticket from the Championship year run, replica championship ring, all the 8x10's and 2 of his rookie cards framed with the jersey. I always want the presentation to be interesting
Anyway good luck with your custom framing look forward to seeing how it turns out!