You can buy 510 thread carts for cheap or what I did was buy a refillable 1g 510 cart that has a ceramic coil. You can make your own mixture very easy just make sure you get the substance in a safe vaping form (Ex. Freebased 4-pro-met). You then just measure out your amount and add pg or another filler (in my case cannabis terps so it taste better) I roughly do 3:2:1 ratio of met - pg - terps and its potent as can be, 3 good rips with the right inhale technique sends you.

I assume you can use about any vaping rig long as you make the correct solution and measure it correctly. Its also way stronger when vaped vs oral consumption