It's really easy to make your own tie rods and drag links if you have access to a welder. Ideally, I like to use DOM (drawn over mandrel, i.e. cold worked steel) that has an inside diameter of 1". You can easily order threaded bungs that have a shoulder sized to tightly slip inside that 1" inside diameter, then you weld them in place, and thread the drag link/tie rod ends in to the bungs. I use 1.5" OD x .250" wall DOM for my drag link and 1.5"OD x .375" wall for my tie rod (because it gets smacked on rocks and any bigger in diameter would contact the differential cover at full steer).
I have no idea what kind of steel availability you have around there, but using heavy pipe could also be done. It is not as strong for our purposes because it is designed as a pressure vessel instead of a structural member, but many people have used it with success. HREW (hot rolled electronically welded, the same thing as DOM but without the cold rolling process, so it is considerably weaker) would be a better choice in most cases in my personal opinion.