Wow, quite a fine collection. The 4x4 is probably worth the least, mainly because film is hard to come by. Maybe $200-$250. The T is seen as a somewhat lesser line of Rolleis; less well built, so I understand. $400? The Rolleicord is maybe in the $300 range. The 2.8E and 2.8F are up close to $1,000; the 2.8E is maybe a little closer to $800. I'm assuming perfect working condition for these.