You might consider the Maritime 20G (a single one) in place of the dual OMNI-496’s. On paper, the 496’s are slightly better, but you need two of them. With the 20G you can use RP-SMA adapters and one antenna for both of the WiFi elements, which you will likely never be using simultaneously anyhow. The 20G also looks similar to the 40G in color and size.
I’ve tested the 40G and have an article coming out on the 20/40G and they are both very good antennas. The 20/40 will be what I use for LTE moving forwards.