In my opinion you're focusing on the wrong variables. If you're traveling to Japan you're spending several thousand dollar at least. In Japan your expenses are transportation (air and ground), lodging, lift tickets, and food. Transportation is high, lodging can be either high or low depending on where you go, and lift tickets and food will be very cheap compared to what you're used to paying. The most expensive lift ticket I've purchased in my 4 years here is around $50 and they are usually around $30/day to ski. The yen is currently falling again and most people think it's not going to bounce back anytime soon. Whether you have an Epic/Ikon/Indy pass shouldn't factor into where you decide to go or ski; in the big picture you're not saving much money by skiing for free that day; particularly if you're spending a lot of money to access those locations.
Here's a useful link on what you're looking for to figure out how to set up a trip to Japan; it's as close to a one stop shop as you can get.
https://www.powderhounds.com/Japan.aspx
Once you figure out where you want to go then see what lodging fits your budget. Booking.com is the best search engine for lodging in Japan, though you can also use airbnb if you're traveling with a group and trying to rent an entire accommodation out.