Not to be a jerk, but you are asking a lot for what is basically a gamble.
When people look to buy things off of forums there are hunting for a smoking deal and the seller should expect a hefty loss from retail value.
Necron battleforce-All painted. = Goes fro $70 retail NIB, painted and assembled is not a "bonus" unless you are a "pro painter", I have had to unassemble and strip 90% of all used minis I have ever bought, which means your painted+assembled=More work for a buyer
Necron lord-Unpainted with RES orb. = $12 Retail
Necron Heavy destroyer-Painted. = $20 NIB - see above
Necron codex-Good condition. = $20 and you can usually get one free in a random ebay auction, or use a PDF to get by.
5ed rulebook-Opend 3 times. = $40 IF it's the full size hardbound version, if it's the small softback that came with AoBR with the templates below, then it's a $10 book WITH templates, dice, pointers, etc.
5ed templetes-Opened used 1.
Most of the counters.
So, in the future if you want to move things fast you should aim for 25-50% below retail and forget about ANY value for assembled or painted, your time invested is only valuable to you and may actually mean MORE work for the buyer.