If they are Rex, they have WAY too many guard hairs, which makes the coat harsh in texture.
A harsh coated rabbit will usually have very good density, so can help correct an overly soft coat. Unfortunately, they all have the same fur, so I don't know what you will get out of them- likely more of the same.
You *might* get lucky and the guard hairs will molt out. I was at a show once where a gal was trying to sell some Rex to recoup a shared barn deal that went south. The owner wasn't doing her part helping to clean and ultimately just dropped out of the picture altogether, so they got the pedigrees from her and were trying to sell off the stock.
Anyway, a friend of mine wanted me to help look them over to see if any were worth buying. One rabbit had a nice body, but had a very harsh coat. Long story short, I saw the lady at a show a couple of months later, and she reported that the guard hairs had molted out.
While this is good news in the long run, if you are interested in showing it isn't ideal. There is no point in wasting months of a rabbit's show career waiting for it to get to the point where it is actually showable.
This is what Rex fur should look like:
The buck looks narrow in the shoulders. The first doe looks like she may be pinched, just going on the fact that I can only see her toes. The second doe is the nicest of the group.
I don't like the fact that their feet are so filthy. Make sure to check for sore hocks and/or hutch burn, as well as overall health. Look for snotty noses!
It sounds like you are pretty committed to getting this trio already, but if you can opt out, I would, based on their lack of cleanliness alone. That indicates poor husbandry to me, and sends up red flags.
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