We currently use a skidsteer (bobcat s770) for feeding.  We put about 1500 hrs a year on it, and they cost way too much to trade in yearly around here.  We would like to go to an endloader to pick up speed, save time and hopefully less repairs.  What is a good size to look at?  We feed out of bunkers, smallest one is 38x120, largest is 120x250.  I'm feeding a little over 50 ton a day through a 700 cu ft reel mixer.  Our commodity shed has 1 10' wide bay, the rest are 12' wide.  I'm not sure on height.  I know a belt trailer semi can back in if it has barn doors.  if it has a door that lifts up it is too low.  I think it is about 12'.  We have Cat, Deere, JCB within an hour drive.  There's probably a few more that I Don't know about. We will probably get a used one, but hopefully a newer model.  I would guess the budget to be about 40-80k.

Are there any options that are a must have?  I think Hi lift would be, but I'm not sure about other accessories available.