"Must have a bonecraft sub. Couldn't attempt with Leather 100 Smithing 59 GSmithing 51."Can verify this. updated wiki. Now the question is, which of the others is an actual sub and how high: smithing or GS.
You can save a lot of money if you buy the ingredients from AH yourself (800k). And with some farming and friendly crafters, you can get it at low as 100k.
As far as the evoliths suck comments. Yes mostly true. However some of these peices are quite decent on there own. Ebon jerkin for 1 comes with snapshot