There are always lots of different ways to think of filtering but I might suggest what I like as a somewhat cheaper and different way. I have a 120 gallon with lots of plants but also lots of wood and that means the flow is not going to go straight from "A" to "B" . I use two filters and do like some of that but much smaller sizes. I am not up on the new model numbers from Ehiem but use the older model 2075 as the larger and then have a 2217 which is the really old Classic model number running on an inline Grigg's reactor. With the reduction in flow on the reactor filter, I needed more water movement but instead of larger filters. I find the small powerheads can be placed out of sight and in places that I could not get filter flow into. I am using lots of the little $7 powerheads off the auction site as a way to tuck one down and behind a big decor item and point it to move the water in more "gentle" kicks from one spot to another.
I find that I do not need more filter as I have plenty of mechanical and bio going on but the flow is much simpler to maintain on powerheads than filters. Cheaper, too!! The powerheads hang on the glass well with and improved suction cup with a flip lever to draw down tight and they run for months without needing attention. My biggest problem with them is clearing plant debris if it gets wrapped around the shaft so that the impeller doesn't start in the correct direction after power is out.
Perhaps a $7 try might find a good solution to using smaller filters that cost less and need less work?
In the overall expense, I find $7 is almost "throw-away" money if it works??
Circulation Pump Wavemaker 530 GPH Aquarium Reef Powerhead Suction Cup Mount