I'm not sure what price you have the opportunity to get one at, but here are some things that I see that should be considered.
-While BP's can live in racks without hides, each of those cages is 21" tall, so you will probably have to use hide boxes.
-Each individual cage has a floor space of 24" X 17", which is about the same area as a 32 quart tub, so it would probably work for snakes up to about 3' to 3.5'. But if any of your snakes get any bigger than that, then they would need a more floor space to accomodate the snake and furnishings.
- Also, consider the heat source. Each cage has basically a screen top with heat lamps above it, with no provisions for optional belly heat, so you are looking at potential humidity retention problems, as well as, trying to maintain proper temperatures and gradients along the floor. Not to mention, the replacement costs for the bulbs, which don't have near the life span of Under Tank Heaters, Flexwatt, or Radient Heat Panels. Unless, there is a way to get into the spaces, remove the light fixtures and mount in belly heat, yourself.
Personally, I would go with PVC cages. Most of the cage manufacturers offer multi-unit and dividable cages, if that is what you are looking for. And most offer "combo's" and "stack" packages for about half the price of one of those new Euro cages. And the PVC is going to be alot more durable than that veneer (melamine?) in the Euros. I would suggest browsing around the PVC cage manufacturers websites and compare features, sizes and prices before making a final decision. Here are the links to some of the cage manufacturers websites, in case you need them.

http://www.boaphileplastics.com/multi_cages.html

http://www.animalplastics.com/

http://repti-racks.com/index.php?opt...chk=1&Itemid=6

http://npicages.com/index.html

http://www.pvccages.com/new/?page_id...&product_id=49

http://www.constrictorsnw.com/cagessupply.html

http://www.boamaster.com/

http://www.showcasecages.com/

Hope this helps...