You would not need carbide "punches", and you would only need multiple "dies" if you were progressivly forming. Just one die for the final deep draw would require carbide. Price would all depend on the diameter of said 1.5 liter pot. The whole die would not, and should not, be solid carbide. Just a donut of carbide that sizes the diameter, and has the draw radius would need to be carbide. The raw piece of carbide could cost only few hundred, to a few thousand, depending on the diameter of the pot. The real cost is in the labor and skill required to cut and grind the carbide.
If you are talking about outdoor goods like pots and utensils, most of the products, and most of the raw titanium is coming from China. China is the worlds #1 titanium producer. Titanium is also being processed and milled here in the US. The term grade when applied to titanium, groups titanium into groups of comercially pure, and alpha/alpha-beta alloys. The quality of titanium used for military applications vs ti used for outdoor gear is the same. Only the medical industry has there own sub-grades of alloys.
While Evernew pots are made in Japan, my money is that it is Chinese titanium.
The old evernew stuff was and some I believe still is .4mm. The old BPL stuff is both .3mm and .4mm. Our 550 pots are .3mm and hold up just fine. I have also used several of the Evernew pots that are .3mm and they hold just fine as well.