There were a ton of them available on amazon and ebay two days ago. I purchased a refurbish one for around $4k. If you can rely on the seller on either site, they are available. I contacted each seller with many questions and got one in two days, as I just got mine after work today.
Congratulations - you will be able to see why we all rate them now
Here is the workaround to get the equiv on M mode + ec + auto iso
Objective: Set set a minimum and maximum shutter speed. In Av mode if the shutter speed dropped below the mimimum then the ISO would be bumped up so that the minimum was reached again.
- enable safety shift (iso speed) C.Fn 1 - 8
- set shutter speed range C.fn 1 - 12 ( set the minimum shutter speed )
- set the Av value
- set the base iso value (can be L so then it acts as auto iso)
- set exp comp as needed (yes we get exp comp and auto iso this way)
So there you are - how to get auto iso with iso and Av limits set.