With only going up to "5" on movements, things will start having the same movement dials as other ships
Even if we toss out the toilet seat and assume everything will have symmetrical dials (as in, lefts and rights will share colors), there are several hundred thousand different possible combinations, lol. Even if you apply some progression "rules" to how dials are colored and assigned, there are still thousands.
Including Straights (5), Banks (6), Turns (6), K-Turns (5), Sloops (6), and Trolls (6) you have literally more individual items than can physically fit on the dial. Before you even get to coloration, maneuver selection creates huge amounts of differentiation.
Add in the differentiation in Action Bars and upgrades, this will never be an actual problem.
That said, I don't really understand what would be so problematic with similar ships anyway. Aside from the problematic nature of X-Wing's product merchandising structure.