A SWCG is prepaying your Chlorine upfront - for the next 4-7 years (depending on use).
WIth a Jandy ePump, you must have some automation to control that. If not let us know, and maybe there are other options
I converted to a SWCG and since I had Jandy AquaLink automation, I purchased the Jandy 1400 kit - see link Jandy AquaPure Complete System with 14 Blade Cell PLC1400
That will cost about $2000. I installed it myself (plumbing and electrical) but would estimate another $500 if someone did it for you. A good handyman could do it if he understands about plumbing and electrical. Polytec is an authorized seller of Jandy which got warranty updated.
Your pool is about the same size of mine - the Model 1400 is rated to 40k gals which is perfect. I run my pump 23 hrs a day and my SWCG is always putting out a little chlorine consistently. I have left for 10-14 days with no issues - however, since I do not have autofill, I did have a neighbor check my water level every 5 days or so when I was away in heat of the summer.
Since you're also a Jandy owner maybe you can help me out with this related issue.
We also have all Jandy equipment including iAqualinik. We recently added the Jandy 1400 SWG, but Im not seeing how it ties into iaqualink. Tried googling and didnt get much in return on answers on how you utilize the SWG in iaqualink. Is there something Im missing? Hows does the SWG interact with iAqualink?