Hi Pete - To make Ti more available you need to have a readily available source. Most machinists can machine it if you give them a chunk of the stuff. Grade 5 is Ti6-4 or a common structural grade. If you have availability of std tube sizes at a good price then engineers and designers like myself can specify it. Unfortunately especially in Oz getting Ti6-4 or Ti3-2 is an issue. Ti will see more use but through 3D printing so you need to get into that. Machining parts will become less and less used but finishing parts by machining will increase. I used to get Ti and magnesium through a supplier in california many years ago for bicycle, yacht and race car parts. Now most of these parts are made in Carbon Fibre. Much easier to make something in CF then in Ti but there are still things that need machining. So tell us where to get the stuff and what you will have available? Its a large $$$ commitment to have local (Oz) stocking of a range of material, that's the usual commercial problem. Cheers Peter S