I would go to a Paint jobber and see what line they carry and ask them what your planning . They will help steer you in the right direction .
You wont need to purchase everything at once , but knowing you need maybe a quart of the right primer & catalyst will be a start . Might get an idea of what it will all cost you .

And also get the P-sheets on the products you buy , as these have much needed info on the products , like compatible items , what temps are best , mix ratios , application process , 1 coat or 2 coats , air pressure, needle and nozzle for gun spraying , its just nice to read over it to kind of get an idea of what your spraying