AquaRite AQR15 is a good choice for SWG. I've had one for over ten years and have been very happy with it. You definitely want the T-15 (40k rated) cell. I got 7+ years use out of the cell before replacing at a cost of less tha $400, making my chlorine cost for my 15k pool (open year round), less than $60 per year. If my entire unit blew up today, I would buy a new one just like it.
It can be found online many places for around $900. I don't know if there is any additional value to be had with an "extended life" version.
Regarding a pump I recently switched to a Pentair VS pump. I bought a 3hp Intelliflow VS 011014 online for $850 with a $150 rebate. Had it installed in order to get the full three year warranty. This pump with its onboard timer and speed control provides a tremendous amount of flexibility. It allowed me to program one speed for my in floor cleaning system, a second for general filtration, a third for my solar heating. Then there is the energy savings. My old 2hp single speed pump drew nearly 3,000 watts all the time it was running. Most of the time my new pump is on its running at 1,000 rpm and drawing about 100 watts. It only ramps up in speed to clean the pool or heat it with the solar, and even then it's using less than half the energy of the old pump.
VS pumps are a big investment up front, but everyone who has one loves the flexibility of being able to program just the right speed for each situation. My daily program during swim season uses three different speeds plus a fourth which is initiated by the solar controller on demand. There is even a separate "quick clean" button on the pump that ramps it up to a programable speed for a programmed period to give the pool a touch-up cleaning at the touch of a button.