If you only want a few Pateks, id go with a date. So this is why imo you should go with the 5296. There are spectacular sector dial versions in both r and g - i would take one of them - they have that historic sporty chic look the 5196P has for almost have the price of the P.
You choose some great piece. Enjoy the purchase and be sure to buy from a good dealer - quite hard when you choose discontinued watches.
Best, Reuven
2,837 Patek Philippe listings are live on the eBay market and 1721 collector listings on the WatchProSite marketplace.