Why would you even bring it up to the potential buyer ?? They are'nt going to be analyzing the edges.
If they care about originality, they will. Most people aren't as well-versed in DW and Pork Pie bearing edges. There are quite a few people who are EXTREMELY well-versed in vintage Ludwig/Slingerland/Gretsch edges, though. I imagine in about 30 years or so when 90s DWs become "nostalgic" and collectable, people will pay more attention then.
(future......future.......future......)
Collector #1: "Man, these Keller-shelled DW kits are the bees knees!"
Collector #2: "Nah, when they started making their own shells and cutting the reso-side ESE edges, those are the straight poop, man! They have that nice open DW sound."
Collector #1: "I dig, bro, I dig! But, the Keller wood has aged better..."
Collector #2: "Hey, does that bass drum still have the note stamp inside the shell? If not, it's not totally cherry and factory-original condish. It devalues it about a cool grand."
Collector #1: "No, but it still has the Evans pillow, and the swiss cheese DW reso head."
Collector #2: "Cool, man. Makes you wonder why people never thought of keeping those things around, knowing that they'd be worth some mad scrilla in about 40 years..."
Collector #1: "I only use my vintage DW kit for neo-jazz. That Brian Blade was solid."
Collector #2: "I hear ya, man. I play mine with my Bill Stewart ride. Can't get more jazzy than that."