If you are buying new, the Saunders/LPL 4x5 to get would be the XLG model. the 4x5 is probably more substantial than the medium format version and therefore preferable even for medium format printing.
I mention the XLG model because B&H and Calumet seem to be offering it at clearance prices. Given the choice, I'd buy from Calumet myself.
as i mentioned in another post, the xlg 4550 vcce enlarger from b&h was $1649.00 and included a free 14x17 saunders 4 bladed easel. i couldn't be happier with the one i bought. ( i could be richer, but not happier )