Old school Bones wheels.

So a couple of weeks ago I picked up a "Rodney Mullen" Chess board from a buddy of mine that was sitting in his closet in a plastic covered bin for probably the last three or four decades. Anyway, it't complete and has a set of brand new off white colored "Powell Peralta Bones V-VI 53mm 90a" wheels on it. We have all concrete floors in our place so I took it for a little spin. Those wheels are fricken awesome, smoothest ride I have ever been on and the grip was amazing. I tried finding another set and all I could find was a set on Ebay for $250.
Now I'm going to guess those are an original set of Bones wheels and are long gone. So I was wondering if anybody could suggest anything that might be comparable to ride and feel thats available today.

Thanks