For a Mini Lop or Jersey Wooly, a good cage size would probably be a double
Just cuz the Mini is quite bigger than a Jersey. You could even get a single for the Mini, and a smaller single for the Jersey.
As for show supplies....here's what I bring:
1. Grooming table (if you have one, this is very nice; keeps the grooming portion of the show all in one place!)
2. Chairs, blankets...some kids I show with bring pillows. hehe.
3. Copies of pedigrees, show reports or any other show/rabbit paperwork. Best to keep this in a protected binder/folder and only where YOU can get to it
4. The rabbits, of course!
5. Nail clippers, brushes, flour or Kwik-Stop (I think that's the name of it; this is used for stopping bleeding nails
), neosporin/band-aids, other first aid equipment for the bunny. This stuff should be in the grooming stand if you have one, otherwise just bring a small plastic tub to keep it in.
6. Water, hay and feed for the rabbits.
7. Food & Drink for you; unless there's a concession stand at the show and you want to pay for that food.
8. Extra $$ in case you need to get a tattoo updated; want to register the bunny; for purchasing food.
Here's a great website that lists tons of other stuff you can bring:
http://www.thenaturetrail.com/Pack-For-Holland-Lop-Show.htm
I don't pack quite as much as the site says; but the majority!
Emily