Im not sure if Im going to do a purely Pegasus Galaxy mod just yet, but thats what it looks like. The Reason why Im hesitant of adding in the Goa'uld is that there is limited cannon designs (yes i know each race has limited designs) but the way the Hataks move and such would be difficult to simulate at the moment. Ori are a completely different reason... We have only seen 1 real ship, this being the Toilet seat, umm I mean the Mothership.
Yes there is the fighter but we dont get a good look at it. Asgard are a great race, and I would love to add them in, but Im not sure how to incorporate them into the mod.
Hmmm I think thats a problem with a majority of the races in Stargate to be honest.I mean we have only seen about roughly 4 ship designs for the Wraith (5 if you count the transport ship in season 1 that was discontinued), 4 for the Asurans, 7 for the Goa'uld, 2 for the Ori, and 3 for the Asgard. I think regardless some new designs would have to be made if most of those races are going to be used personally. Oh and if you are interested, on the MGM website there is concept art for the Wraith Scout Ship that you hear about in "Aurora", its a very cool looking bat winged design.
My suggestion for the Ori side is perhaps using variant designs for the Ha'tak but coloured more white. The reason I say this is because in season 10 of SG-1 we are introduced to a Jaffa faction called the Illac Renin who follow the promises the Ori. So you could split it between smaller vessels crewed by Ori soldiers and converted followers while the higher ships are things like the Ori Mothership which are commanded by the Priors themselves. So a mixture between the two. Not sure about combating the effect of a Ha'tak moving through space in Sins though but thats my thoughts on it.
The Asgard I think would have some very powerful designs but all of them would need to be somewhat expensive.