I did a bit more digging on Ebay and found these
HTML Code:
http://cgi.ebay.ie/ws/eBayISAPI.dll?ViewItem&item=200661710880
, So I bought a couple an I'm gonna try mod these up to fit on my bar.
While I'm waiting for those to be delivered I'm gonna get out my dremel and epoxy and I'm thinking if I take a standard LNB holder for a Triax multiblock/flexiblock cut the portion that fits on the bar, from the portion that holds the LNB.
That then by mounting a bolt on each part embedded in epoxy and then attaching the seperate halves via a threaded bar, that i should end up with what I'm after
i.e a height adjustable individually moveable on the multiblock lnb holder.
I'll post an update when I get it done.
Thanks for the input sofar Silver