While I'm not a big fan of the short-barreled 7.62s (you are cutting the balls off that round if you ask me), I realize that there are different strokes for different folks, and I thought I might give you some other ideas for rifles you may not have thought of.
For one, you might look at the M1A platform. Springfield Armory, Inc. makes a Scout Squad with an 18" barrel and a SOCOM with a 16" barrel. Prices are around $1400-1600 new if you shop around. Both of those models come with a forward "scout" rail that is perfect to slap an EOTech on. If you have to have a pistol grip stock, you can get an Vltor, Sage, or Troy stock for it, and it would still be cheaper than a SCAR, in a more tried and true platform - and would look just as cool, if you care. Typical accuracy is under 2 MOA. Springfield makes a pretty high quality product with a lifetime warranty, but if you want a higher-end M-14 type rifle, look at Fulton Armory, LRB Arms, or 7.62mm Firearms.
I would also take a second look at the .308 ARs. Yes, the heavy-barreled ones are, well, heavy -- but they make some 16" barreled ones with basically an M-4 profile barrel that is a lot lighter than your SASS. Rock River Arms and DPMS make the lower end ones, Armalite makes an OK one, and LaRue and LMT make higher end ones. Typical accuracy on all of the above would be 1 MOA or less.
Oh, and how could I forget the new Kel Tec RFB? It is a really innovative rifle. It is a bullpup 7.62 with an 18" barrel that is actually shorter overall than an M-4 carbine with the stock fully collapsed, and it actually doesn't weigh too much more, either. It has a flat-top rail that would be ideal for an EOTech. If you're looking for something that would handle well in close quarters, this would be by far the best of all the 7.62 rifles, because of the bullpup layout. Initial reports are pretty good... they are apparently a lot higher quality product than some of Kel Tec's other firearms like the SU-16 and the SUB-2000. They are fairly new and hard to find, but there are always several for sale on the online auction sites. $1800 would probably snag you one. They take FAL mags. Also, they have an adjustable gas regulator, which is cool if you plan on getting a suppressor or shooting some high-power loads out of it. Accuracy should be under 2 MOA.
If I wanted to buy one of the new "novelty" short barreled 7.62s, I would go with the RFB in a heartbeat over the SCAR. Less money for a cooler, more useful rifle. I will be all over one as soon as they come out with the 24" barreled "sporter" model.