Yeah, mine looks very similar to WALKER's. I actually tried installing it first with a 6th gen base because I heard it was an option. Buuuut, I learned that if you want to cut a telescoping antenna, go with the 6th gen base. If you want an easy install where you just screw it together, go with the 7th gen base.
Since I already got the 6th gen base, I was able to use it's lower mounting bracket on the 7th gen base. I don't recommend buying both since it got kindof expensive trying both.
Anyway, here's the pricing breakdown:
Genuine S2000 Antenna: roughly $20.00 on ebay
6th Gen Base: $37.63 shipped from ToyotaWorld
7th Gen Base: $46.28 shipped from ToyotaWorld
I'll grab some pictures after I install my new gauge faces and finish the interior lighting to match. Might as well get them all at the same time.