1.
Gypsy Nirvana's Seed Boutique Nirvana Seeds Standard= very reliable
(4 stars) and very cheep, 20 us dollars for 1 pack, shipping included, and a freebie pack as well.
2.Don't fert for the first 4-8 weeks, but when you do a cheep and simple method is osmocote time release fertalizer 14-14-14, available at menards, home depot, or lowes for like 5 bucks, mix with soil or sprinkle on soil and forget about it till flowering.
3.transplant whenever you think they are outgrowing what you have in them now, you will see roots starting to grow out the holes in the bottom. 5 gallon buckets work well just be sure to drill drainage holes, though if your soil is good planting straight into ground will always yield best.