NEED SOME HELP WITH ULTIMATE FDNY COLLECTION

Hello brothers i am new to the members area and am looking for some help... i have a ton of fdny code 3's in mint condition and am looking to get rid of them...i have all old ones and i think every one up until i want to say 2005ish....or whenever the squad set came out cause that was the last thing i bought...well my problem is how can i figure out the value of each truck and i would like to sell it as a collection cause i have run into a hardship and need the money....i know there are plenty in my collection that are very rare but i would almost definately like to sell the collection as a whole.  i can go ahead a list my collection but before i go and do that i would like to see any advice i can receive and if anyone would be possibly interested.... all the models are in mint condition in the plastic case and never opened...
thanx
steve