you should need to find a block in order to get paid 25 Litecoins each time you find one…no shares are found, turned in, solved or anything like that…only block hash solutions are mined for instead of share solutions…at the current difficulty you will need an ASIC to find a block on litecoin of a minimum of 100 MH/s …which gives you about a 30% chance of finding a block withing 30 days…and only needs 6 confirmations and is highly unlikely you’ll ever find a block at only 100 mh…

if running P2Pool proxy in the middle will get you fractions (sathoshi’s) every time a block is found by one of your peers…after 160 confirmations but will only get paid for your shares…

you can mine directly to a wallet in both methods…p2pool wont run with out a daemon to connect to like litecoind which is also what is run to mine solo without a intermediate proxy type server…(where only full blocks are found)

here’s a calculator for ya…https://www.litecoinpool.org/calc