I'm just about finished with a Corporal Rostock costume. One of two known on RL, and (if I say so myself) mine is FAR better than the other one. I did massive research and cross-referencing to get it where it is.
it was NOT cheap, and I had to custom make boots nearly from scratch. I just got an Avanos Cassian Andor jacket to go under the vest- that was a big hang-up... I can go for approval with what I have now, but I want to complete the rifle first. One and done. I also helped identify the belt pouches, which were not properly identified when the other costume was approved. One pouch still eludes me, but it won't stop approval. At least, it shouldn't...
Anyway, there's a good variety of costumes available, and a large number of them are undergoing complete rewrites of the standards. I think getting in on the "ground floor"- i.e. being the first one to do a particular costume, makes it easier than a "face" charecter, which has been analyzed to death, and made 10,000 times.
One I was involved with, to a very small extent, was the soldiers on the Millennium Falcon on their way to Endor. The deleted/extended scenes showed much more of these guys and a standard is being written right now.
So, there are options, if you want to avoid Han...
I also have a Poe Dameron costume that is roughly half done; maybe more than that. The standard for his pants (it's ALWAYS the friggin' pants!) is rather tight- too tight if you ask me, and I'm doing some heavy reworking of Austrian military pants to get close enough to go for approval. I think I have the rest of the costume.
One thing that irks me is that it's okay to go for "close enough" greeblies on the costumes for example, yet, when the exact item is identified, it is not a requirement of the costume. Okay, the angle of the pockets need to be changed* (actual request) but the plastic thingies are fine instead of the actual metal thingies. I don't agree with this. Either be over the top anal-retentive with it, or relax a bit. I think often one does not see the forest through the trees...
(*These pockets are just about invisible on screen. Frame by frame analysis was required to nail it down... sort-of. Clearly not a deal-breaker trait, but there it is.)