bsbauman, here are the sites I use.
For carbon rods and tubes plus depron:
I get my mercury CA from these guys too.
For Icarex fabric use http://www.kitesandfunthings.com/
I don't see it on their site but you can call Marieanne at 734 454 3760 10:00am -6:00. $15.00 per yd. All the other ripstop I've tried shrinks in the sun.
They have carbon plus the plastic kite connectors, but I lash all mine with kevlar
thread and CA it.
Wildrc.com sells covering too plus the IFO kits. http://wildrc.com/index.html
You can get a 24" x 41" pc of covering for $10. Dans IFO materials page is here.http://wildrc.com/htmlpages/orderairframemat.html
Motors and things I get from Headsup. http://www.headsuprc.com/servlet/StoreFront
I glue my covering on with weldwood contact adhesive from lowes.
That about covers it.