You'll need an order of magnitude more than 20k USD to reasonably affect the LTC price.
Good luck with your efforts but you're pissing into a hurricane with that amount of cash.
I have my own plans for the LTC price.
I find it hillarious how you "think" you can control LTC price lol... We'll show you whats up.
OP, im in with 1,700 BTC PM me with details.