You can get a good vape online for $150. I've never tried tincture, but I hear green dragon is phenomenal. The easy way to make it is to grind up some weed, put it in a bottle with strong alcohol (Everclear works well, 190 proof), and leave it in a dark place for at least a month, shaking from time to time. Strain the weed out; the THC should have transferred into the liquid. You can make it much quicker using heat, but heated alcohol is kinda dangerous, so read up on how to do it safely.