Looking for Strong Inica and TRAINWRECK SEEDS please!

I am looking to get my indoor garden all set an stone. my plans are to have at least 20 plants (legal limit) i want to have a variety so i decided that i am going to purchase both Indica and Sativa seeds. First off i really want to grow some amazing looking purple that will knock the socks off most anyone. Who has experience with a strain like this and what seed bank did you get it from? on that note i also want a strong Sativa. I am a HUGE trainwreck fan so i REALLY WANT to FIND TRAINWRECK SEEDS. If anyone has had a really good experience growing trainwreck i want to know where you got the seeds from!!!! Whatever i end up getting i will only plant 10 seeds. i will fill the rest in with clones, after that i hope to produce my own clones........... then maybe plant a seed or two every other cycle..... Please advice (experience) is what im looking for, thanks.