Cheers Steve
The pic above was designed that way so he could incorporate his airbag/air ride system. He made it quite complex and possibly prone to weak points but it looks trick which is the American way with these trucks. See below


I've priced up all the components by using available sources local to me and it works out very expensive. Threaded bar ends with bushes x8 plus weld in butt ends and then all the cnc cut mounting plates etc and the bars themselves come out at over £600.

It's just bloody annoying that we have to pay so much for this stuff when across the pond you can buy the kit pictured below for less than £200


Il give the guys you suggested a shout tomorrow to see if they can help.