I have a similar setup, but decided to get the 5 inch model of the Super Dust Deputy. The problem may be with making the adapters fit, so I suggest you order their metal connectors. The Wynn filter is what I have and it dramatically reduced the fines released into the shop. However, I suggest you check out the Grizzly filter, which has an internal beater arm to knock sawdust down into the collector bag. With the Wynn, you use compressed air to blast from the outside to dislodge the sawdust that eventually clogs the filter.
The Super Dust Deputy SDD, is about $170, more than the 2.5 inch model, but you won't have the problem of the drastically reduced air flow. A 4 inch circle is almost 29 square inches of area, a 2.5 inch circle's area is about 18 square inches. A sizeable difference.
I moved my HF unit out of the shop and into a covered space between my shop and another shed. I am slowly enclosing that space with doors on the end for access, after Stick suggested returning the AC and heated air to the shop after filtration. It is taking me some time to get this done because I tire easily these days. I will install additional filters over the return opening to make sure that air is clean.
I found fiber drums at ULine, online. I have two DC setups, one in the shop, the other in the garage, each has a 30 gallon fiber drum for chip collection. The price has gone up on these, but they are really nice.
The 4 inch Super Dust Deputy comes with a 15 gallon drum, which is just too smal. You can't buy the SDD 4 inch without the drum.
I have several friends living in Alabama. I just don't like the idea of the sweaty summers and hurricanes and twisters. I'll stick with the earthquakes out West.
The more I do, the less I accomplish.