Help finding fabric

[stag3]

I decided to make my own tent and am looking at two fabrics. One is Momentum 1.05 oz per yd and the other is Spectralite, made from Cuben fiber at 0.6 oz per yd.

Question is are these durable enough for tent and where can I buy it.

Thanks, Stag3

[hammock engineer]

http://www.thru-hiker.com/ is the only place I know of for Mom90. Let us know if you find it anywhere else. AYCE from there is really helpful to talk to if you have any questions.