Whew...at first I thought that said EWOKhunter
If so, welcome neighbor. As far as the bull 16", the last Rose City gun show, they had the 16" all the way up to the 24" bull barrel uppers (DPMS) going for anywhere from $550 to $725. So $899 for the complete gun isn't that bad, considering the shape of things out there right now.
I just sold a DPMS 20" bull, FF tube, BCG & handle, plus complete DPMS lower for $1000, but I also gave him a couple mags, a used tact bag, and a bipod. Ok, so I'm a sucker? I'd rather think that I'm not trying to gouge anyone.
So the deals are out there. if that 16" feels right to you, then hey...what've you got to lose? At least you'll have something in your hands that you like, can use right away, and is yours. Assuming nothing drastic happens (from our current leadership), I'm hoping things calm down and prices will stabilize.
Will they ever get back to where they were? That depends on what the crazies decide to do with any kind of a ban on arms or ammo. So if you've got the time to piece it together, then the education and satisfaction that it brings can be worth it. IF you're afraid that a ban will hit before you can do that...then a full firearm might be just the ticket for that peace of mind.
The price you quoted for that gun wasn't bad. If you go that way, post some pics when you get it, and welcome to the club. If you decide to piece one together, welcome to the club, too, and you've come to the right place for assistance. Good luck either way, hope to see some pics soon.