I will need to look into re-pitching yeast to save some cash.
The main reason I need to use a secondary is that I have a Igloo cooler modified to hold a fermentation bucket so I can get temps in the upper 60s by swapping a frozen water bottle morning/late evening. I then can put the secondary into a make-shift holding area by directing the AC vent on the ceiling around 71-72' as the picture shows below. No basements in FL.

Is 4 weeks too long to wait to bottle for most beers?
Assuming I am in no rush and really only have every other Saturday to brew, does my plan sound like something that can work well? Or should I squeeze bottling sessions in during the week?