"red albino" and "amelanistic" are the same (as mentioned earlier), but you now say that they are "hypo" as well? Make sure that you know what you're getting before you pay.... $180 is a bit high for these animals (this is a pet store retail price).
I recommend not paying anything more than $150 for the pair.... expect to pay about $100 -$150 for the pair at a show. I picked up a 2 year old corn from Kathy Love at a show once... albinos, snows, anerys were all going for $75 each (these were 2 years old) during the first day of the show.
I purchased a pair of extreme hypo corns (looked like albinos with normal colored eyes - also 2 years old and around 3 feet in length) at another show for $100 ($50 each).
However, if they really are "screamers", then $180 might well be warranted..... post pics if you get them.