Yeah, from what (very little) I know it seems an 18" in .308 is about as short as you want to go to still get the most out of the (standard) round.
It seems only the patrol has sights and as far as threading I suppose it would not be too big a deal, but why not have it from the get go?
To get even more picky I think the rail is too far to the rear. Scout scopes are normally forward of the action more. I don't think of the gun I would like as a 'sniper' so a nice 3 or 4 fixed scope well forward of the action, iron sights, top load capability (stripper clips if detachable magazine fed), bolt action.
I know "picky, picky!" 
Nothing wrong with picky. If you are gonna spend your money, you should be sure you get what you want.
If you can find what you want, out of the box, at the price that works, great.
But if not, you have two choices: Wait till someone puts in a box, or: see if there is a reasonable way to make what is in one of those boxes into what you want.
The 16.5" barrel might not be an issue. I would have had it as a concern too, but posts here indicate it may not be.