Price check on some r9 weapons and a question

Right this is the first time i've bothered to do this because I keep hearing that requirement 9 max dmg items can be worth a lot. So I got these today but have no idea if they're worth anything or just merch stuff.

While im at this I thought i'd also ask:
How do you tell if a req 9 max item is worth anything?
And how do you tell how much its worth?

Will the first spear become much more valuable if I put the upgrades from the second spear on it?

I know one answer to the second question is just to research the current prices for these items but considering how many items are in the game I was wondering if there might be some sort of guide lines or something these items follow.

Anyway any feedback will be appreciated.

merch all imo...vamp snathe might go for ~5k.

q9 items are worth something if its a desired skin...Even q13 items of some skins can be worth a decent chunk of money. The prices vary for every item which is why this forum and price checks exist.

An item will only gain the value of the mods you put on it. Most people wont pay more than the mods + the item are worth if you sell them a modded item.

Agreed slavge and good mods and merch

Right thank you for the quick and clear replies. I'll try to sell the vamp scythe so.