Then probably you won't do it.
Interference wise Nanosync will not do any good. It could give you some improvement over stock but this would be in uncongested area. The FPVLR antenna designed for the 3dr Solo will increase your range on the HD part compared to stock in interference area but this one is not very forgiving in directional terms. Although (HD) beam should be 60 deg I noticed that it is more like 30-40 at longer distance. The RC part is more forgiving.
Stock the nanosync can be folded very compact with a minor DiY adjustment so you will not have to take it off. I love the design, especially the bracket. In My opinion better option than the FPVLR Yagi. You do not want to remove the cables all the time, SMA connectors are not made for this.
Some of us will test the Nanosync boosted soon. (I did do this before on the RC part and it worked quite well until it didn't. My amp became RIP). If this works out well it would be an elegant solution. @JakeMaxxUAV is working on a mount for the amps.
Just wait for what the outcome will be or try the Nanosync for yourself. Maybe you will have better luck in your area. Here (CE region) people are getting very long range with stock in some areas, also in US people have made it beyond 40.000' with stock antennae. For me boosting is the way to go and I like it!
Thanks Maclak, I think you've saved me from doing unnecessary "upgrading". I believe the solutions for my problem is boosted Nanosync.
Will be looking forward to reviews on boosted Nanosync. Hopefully it can still be folded compact!