You aren't committed to cleats, you can just put a 1/4 strip in where you want to put the seats, just just go a little past either side where you want to hang them.
I will post a few pics when I get a sec, I am just starting a raid in WoW atm ... but I will post tomorrow morning I figure.
Brian
Look forward to seeing the cleat application. I am also pleased to see the "Beefed Up" application. There are options and weight savings to boot!