Price Check on a few items

I know this is a fairly big list.. but I have been trying to sell these at various prices based off of the "suggested prices" listed in this forum; all with no luck.
If the item is worth anything.. please give a price range, or if it is useless... let me know if I should merch it so space isn't wasted. Thanks, and sorry again for the big list...

#1 - Merch, high req and common skin.
#2 - 2-3k, elonian crude isn't very popular.
#3 - Merch, req is very high.
#4 - 1-2k, common skin.
#5 - 2-3k, very overfarmed and consequently cheap skin.
#6 - Salvage 1/1 and try sell for 1k or so, merch bow after.
#7 - Salvage +30hp and sell for 8-10k, then salvage +10al and sell for 1-2k, merch after.
#8 - Merch, high req.
#9 - Salvage 20/20 and sell for 3-4k, then salvage 15^50 and sell for ~3k, merch bow after.
#10 - Salvage 19%/15%stance and sell for 500g-1k, or simply merch.
#11 - Salvage 20/20 and sell for 3-4k, merch after.
#12 - Merch, paragon version is not in demand.
#13 - Salvage 1/1 and try sell for ~1k, merch bow after.