You will be screwing yourself by giving it away in a package.
The odds of one guy wanting exactly what you have is slim and none.
Sell individually.
You didn't provide any pics of the insides.
Clean them if they are not, to bring top dollar.
If the grates are good on both, you can expect
$125 to $250 for the WSM.
DO NOT SELL IT WITH THE FAN AND FIREBOARD.
List the Fireboard and fan as a package by themselves.
$175 is a good place to start.
The Performer will should sell for $150 to $250... once
again, if the grates are nice and clean. It will do better
also, if you remove all the stickers. You may like them ...
most buyers will hate them.
You can easily pull $500 to $600 for what you have if
you put in a little work. If not, take $200 from someone
like me and be done with them.