Hmm. Seems interesting so far.
If you really are having such serious trouble finding modellers or otherwise skilled people and if this is going to be a real problem, I'd suggest you to visit
http://ia.emperorshammer.net/home/ and perhaps ask if you could cooperate a bit, if you already haven't done so.
It seems to me that there are right now two groups (you and them) trying to make exactly the same thing. Imperial Alliance is a Star Wars based free space combat simulator
based on FS2 flight engine. It is also going to be a standalone game, not a FS2 mod, just like yours.
I think these guys ar a little longer to the process right now than you are. They are currently on closed beta phase, and after that there will probably be an open demo version of the game.
If I were you, I'd contact these guys and ask if you could use their models (if you like them good enough), OR ultimately you could consider joining your forces if you'd like. I personally think that there's really no sense in bringing on two similar mods based on the same game; If both are good with slight differences, I think it'd be a reasonable thing to do some cooperation, take the good things from both games and release a single product together. For a gamer that would be a better solution than having two separate games with their own pros and cons. Then you could focus on making cool missions and campaigns.
By the way, I think that your models look cooler in overall comparision, just thought that cooperation could give a boost to both groups and then I and other gamers wouldn't have to wait so long! If you already know about this group (which is very presumable), well, it's your call whether you want to cooperate or not.
I also think that you should go and advertise this game a bit by contacting some groups that would quite surely be interested of your work:
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http://www.darkjedi.org/club/TFA/, the best club flying XVT and XWA: Tie Fighter Alliance, that's my club
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http://www.darkjedi.org/club/TRA/, Traumatic Rebels' Alliance, having very many active pilots on their list traumatized by TFA's overall superiority.
There are other communities playing XWA and even XVT still, and we would most certainly be delighted to have a new game to play... but they won't play unless the know about it... which would be a tremendous loss.
But make sure that the multiplayer works, and works good... Also I'd like to ask whether or not it's possible to regenerate a pilot during mission? Because flying melees with just one life is not very... erm... fun. And mostly we do fly melee missions on XvT and XWA, mainly 2vs2's but that is partially due to lagginess on more complex missions.