I used 10mm box section stainless tube
It seems a little long as it is, but i've left some room to trim it down if required.
I'll be looking to run it on this angle
Tom (Chief) at Holme Valley Customs - www.holmevalleycustoms.com/ - sent a package of pre cut frame tabs, saved me some time trying to get them cut.
I've tacked on the two shock mounts to the mid section of the front cross bar.
Need to make the support arms to the frame but i'm happy with it so far