I would not solo mine LTC with less than 100,000 KHs or 100 MHs.

Solo Mining at difficuty 605 will give you on average the following:
100,000 KHs = 3 blocks (150) LTC per day
10,000 Khs = 1 block (50) LTC every 3 days
1,000 Khs = 1 block (50 LTC) every 30 days

Pooled mining at the current difficulty 605 will give you the following:
100,000 Khs = 166 LTC / day
10,000 KHs = 16.6 LTC / day
1,000 KHs = 1.66 LTC / day

Try using a LTC calculator like the on at https://www.litecoinpool.org/calc

MrBSmith

LTC LUwVTpW14FvbfVFz7YNNhjsA3FUZUXQgDu
BTC 1KkGkBPsMMyV8ccgsywgQmVgmpZL5fEQzc