AITA for not wanting my sister's late father to walk me down the aisle?

I (27F) come from a loving but complicated blended family. My mom has 3 kids - my older sister Jen (37F), me, and my younger brother Jamie (25M). We each have different biological fathers.

Jen's biodad "Papa Mark" died tragically before she was born, which was very hard on my mom. In a way, she is still grieving him even almost 40 yeas later. My biodad is "Papa Gene" but he and my mom divorced after a year and he wasn't very involved, though he paid child support. Jamie's biodad "Papa Roy" was our true father figure growing up. He wasn't biologically related to me or Jen but was extremely devoted - coming to all our events, teaching us life skills, taking us fishing, etc. An amazing dad.

When I was a teenager, completely by coincidence, Papa Gene and Papa Roy ended up working together offshore. They became close friends. Roy's positive influence led Papa Gene to become more present in our lives. So in high school Jamie and I kind of had 2 dads - Papa Roy was the most active father figure, but Papa Gene would show up for us too. Jen had moved out by then, so she never bonded with Papa Gene the way Jamie and I did.

Papa Gene also had another daughter Erin (11F) and he's a much more present father to her than he ever was to me, thanks to Papa Roy's influence.

Sadly, Papa Roy passed from COVID in 2021, which devastated us all, especially my twice-widowed mom. Even Papa Gene took it very hard as they were close friends. He was a pallbearer at the funeral.

I'm now getting married. For the ceremony, I want Jamie to walk me down the aisle holding a photo of Papa Roy. Papa Gene will also walk with me as he's my biological father. This upsets Jen because she wants her late father Papa Mark, represented too by having Papa Gene carry his photo. I offered to let Jen carry Papa Mark's photo herself, but she insists Papa Gene should carry it to have "all the fathers of the family" represented.

However, I never knew Papa Mark and it feels strange to me to honor someone I didn't meet the same way as Papa Roy. Jamie has offered to let Papa Gene carry Papa Roy's photo - because they were so close - and Jamie would carry Papa Mark's, but Jamie is Papa Roy's biological son and looks just like him, so I'd prefer he carry the Papa Roy photo to feel like part of him is there.

Jen is also upset that my younger sister Erin will be attending. It's a childfree wedding, but Erin is my sister and it would be cruel to exclude her from something this important due to her age. Still, this looks to Jen like favoring Papa Gene's family over her own kids (children under 7) who can't attend.

I don't want to hurt anyone's feelings, but it's my wedding and I really don't want a man I never knew honored the same way as the father who raised me. AITA? Should I have Papa Gene carry a photo of Papa Mark despite never meeting him, to make things "equal"? Or is it reasonable to focus on honoring Papa Roy's memory through Jamie since he was my active father figure?