I bought a new pan with foam (no cover) for my 2009 Mastiff. cost for the pan and foam (brand new) is $170
While I still haven't gotten this from BDM yet (DID THE ORDER IN NOV), it's going to show up eventually.
My plan is reshape the foam at the back of the seat, and recover it with a very high quality soft leather (got it already off eBay). The cost of the leather (it was a 9 sq ft piece of lamb that has been made to look like ostrich, extremely soft, beautiful black finish). Cost was under $100 including shipping.
So, I figure a seat guy will charge maybe 150-200 to use my leather on the foam I have shaped. This might end up in the 300-450 range, but a seat like this in leather was quoted to me at being minimum of 800 bucks.
Let me know if you want the link to the leather I got. they have more.
I did not want synthetic (naugahyde) even close to my bike. It's just my choice. Plus, I can ride the bike around to get the shape just perfect. Ride-trim, ride-trim, repeat till perfect then cover it. The seat guy that looked at the stock seat said it was so hard because they glue the leather to it and the leather is thick and hard. I think the stock leather is hard, but not sure how much the gluing affects it.
Keeping a stock seat makes sense. Not that you will use it, but when you decide to sell it can offset the cost of the custom seat if the buyer doesn't like your custom. Custom is custom, not everyone likes the same thing.
Richard