In a moment of spontinaity after my last post i went out with pen, paper and tape measure, figure i'm going to have a go at some diy ones, the ones i've seen advertised seem to fit onto the chassis out riggers so should be solid enough to jack from, i'm going to make them out of 4 x 2 box probably (i've got it lying round) and its just shy of 1/4" thick wall and then use some 2" angle iron for the brackets (i've got it lying round too), just crank the mig up to max and away we go!! will post plans and pics once complete (well i'm hardly going to post pics as i go and then go and fall at the last hurdle!!)