You will have to build them by buying a pack of each and and mix and match the parts. IMO very not worth it for a first build no matter the budget. this is a LOT of work. It will be much easier, and likely cheaper, to just by some Tealios, lube and film. Done. If you want to go a bit extra you can get some after market springs like TX Springs or Sprit. Some people have said Zeal springs can be crunchy sometimes but I've never had that issue with them.
Yeah I'd just do 205g0 on everything, but you can put 105 oil on the springs instead.
205G2 (Amazon sells tubes of