I'm sorry, but selling salvage ra/ex is promoting gil buying. That, or promoting lazyness, but chances are that a rich
legitimate player isn't exactly lazy. So if we exclude the most likely interested people which are lazy gilbuyers, we are left with a very very very small chunk of players defined by being rich and having no friends. Because, as Nyuneko said, it's easy to pull a group up as long as you have a couple friends. Anyone can do it, this is not ground where you need a troop armed to the bone with more than ingame items.
So to answer your question:
I'm curious to see what value you give to a salvage rar/ext item.
No price. Under my eyes, if someone is willing to pay, that someone doesn't deserve it. And if someone is willing to help gilbuyers by being a sellsword, i find that despicable. Helping people that deserve nothing over others that have had a horrible trail of bad luck because of SE's effort-blind system is simply wrong.