Why don't you just buy the hash on Nicehash / Westhash? Your price of 25 LTC per Gh/s per 24 hours is about .18 to .189 BTC -- which is a little low so it most likely it will not guarantee you continuous hash especially when wanting 8Gh/s or 16Gh/s -- but you'll get some of it -- and it will just take longer to get it all.
They easily have 35 GH/s to 45 Gh/s (Scrypt) at your disposal.
I purchased 7 ghs from them for 0.226/GHS/Day to mine but they failed to provide the ghs i don't know why.
Cancelled my order after 5 minutes i was mining on their pool solo.nicehash.com .