Join Date: Nov 2009
Thanked 78 Times in 73 Posts
Rep Power: 6
The 30-hour criteria is a bust. It's not going to happen, not even if you dropped the extra coin for Li4Pho batteries.
At the very least, it would take more space and more weight than your old system did by a considerable margin.
All other criteria are do-able.
S/V Old Shoes
1973 Pearson 30 #255