This is a very widely subjective question with many variables.
Where are you going to trade said pieces? Privately or a gunshop?
There is a wide variety of "condition" from 90% to 95%...Does it include the original grips? If it doesn't, it won't be worth as much. I take it that it does since you say it has an original box, but just asking.
Also depends on location. I haven't got a clue to local prices in "wpb."
Also, which AR-15. There must be 1,000 different variations from 100 different manufacturers in all quality levels demanding different prices- so what does the dealer have the particular rifle priced for and have you shopped around to see if what they want is fair for the specific "AR style" that you desire. It also depends on whether a dealer "perceives" that he can make money on or turn quickly the pieces that you are trying to trade.
The nice thing is that if you do trade in a gunshop, you will come out the "percentage of tax rate ahead." Up here, it's 6%, so that is another factor to throw out.
Pictures are better to allow more knowledgeable members "grasp" what the ballpark price range may be.
I'm not trying to beat around the bush on trying to give you a "value" on your pieces. Many people will take a look at a gun auction site and see what someone "wants" for a piece- but that isn't the "value," it's when that piece changes hands is when "value" is realized.
I haven't a clue on a Glock, out of my league.