brandon.c
161
Patek does have some very nice instantaneous perpetual calendar models
The instantaneous perpetual calendar complication is part of the 5207, 5208, and 5308 minute repeaters.
Any of them would fit very nicely with your amazing collection 😀.
Personally, if given the chance the 5207 would be my pick out of the three because I love the R TO 27 tourbillon movement and the size isn't as large as the chronograph models. I also love the blue dial.

5207G

5208R

5308P