After looking at pictures of every 28 Pantera I can find, it appears that the rear seat does not have an enclosed area for a base but rather an open area w/ a couple of support bars. My question is, where do you put the anchor and ropes and fenders? Can 4 people actually sit in the rear seat comfortably? Thanks

Yes, 4 people fit just fine
I store my fenders under that seat with a bungee to keep them from moving around. I can get all 4 under there, in my fountain I could only fit 3 and I like this set up better, can grab them in a moment and easy to reach. Don't have to have people get up, just move your feet.

Anchor is in the cabin, I use a light weight danforth so it is easy to store. Ropes are placed in the side compartment for ease of reach. when stored they can go in the cabin or under the seats on the cabin.

Thats how I do it.

Same as Von. Fenders in the cabin when I know I won't need them. If I know I'm gonna use them then they fit under the back seat and are easy to get to w/o making people stand up to get them. Anchor in a cabin storage compartment. The only reason I wish it had storage underneath is so I could install a couple 10" subs there.

Same for me. Plenty of room for 4 people, and fenders under the seat.

I've come to appreciate the open design as it is one less place to trap moisture and allowing all sorts of funky things to grow!

Bruce

Thats the great thing about a custom builder, Have it your way, call Jo he'll box in the seat with storage under if you want, I think the way they have it is better. You could still put subs back there the engine room is large, However, a quality built boat puts trim pump on that wall not the transom(pantera is a quality builder)!

Then you have to worry about your passengers getting spit out at speed.....

4 people are fine in the back.
I keep the throwable, and a couple of coolers under the back seat. You can get a tool box under there as well.
My anchor is where the potti belongs...

I was thinking about dropping the anchor in a rubber tub that I could slide under the seat. Hmmm.