The 1505's look great! I would stick with those for sure. They are hard to find nowadays

I have been looking for some multi cells for a while with no luck. I'm thinking about buying a pair of the wood or ceramic versions from the guy on ebay in Europe. They are supposed to be accurate to the originals. There is no replacement for the real thing though.

Good luck with your tweaking. If it were me, I would use the 515 woofers in the A5 cabs