The big club wholesalers don't sell a Group 49, Except for Sams Club.....which actually offers IMO a bettery battery than AZ, AAP, etc. Both in AGM and flooded variant.

- I prefer a EP battery over a JC, if given the the 2 options.
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But for cheapest, locally available, I'd say Walmart or AZ
It's a big battery. $135 minimum seems acceptable IMO
Let's say a nice round # at $150 and it last you 5 Years.
That's $30 a year for a starter battery.....