Get the tubes from the wreckers of an RA40, XT130, just about any old Toyota with a steering box and linkage. Cost Maybe $5. I got a couple you can have for free if you're local.
While you're there pay $5 for XT130 LCAs. Buy a disc for the grinder and remove the stops, and a can of flat black to paint them. Costs about $30 for Nolathane Bushes to suit them at Repco. You will find 99% of the time the Ball joints will be in great condition if they are the Toyota ones. They are hella indestructable. I have no idea why anyone changes them, they are meant to be stiff, just change the boots and grease them.
You can get Whiteline Adjustable Panhard Rods for around $125 from almost anywhere, Ebay, whatever.
Best of luck in your Quest.