Mods don't change the price of a weapon.
I beg to differ on that, Voltaic spears sell for more if they're caster and dyed black, same for obsidian edges and eternal blades as far as mods.
Maybe dumb people won't realize how insignificant mod and dye values are, but the buyers' rule of thumb is to never count mods into consideration of price.
Can you please stop lecturing me on mods and dye's and just PLEASE give me a PC?
You're not going to get much for them if you can sell them. I would just merchant them.