I saw some decent 6 into 1 collectors on ebay a wile back. the auction had them marketed twords some aircraft application, but i think they where only in the $150 range.
How long ago do you think?
I don't see them on there now, maybe I could search through completed auctions, if you think it wasn't more than 60 days back? Let me know, thanks!
It was over 2 years ago because it was before i started planning my 1uz project for my supra,
another idea could be to modify cone engineering's 4 into 1 collector kits by splicing half of one into a second full one that is split and stretched.
They list a 5 into one and some odd shapes, you might want to call them and see what they can do or have planned for a 6 into one.