Hi again,Complete re-think after looking at some production boats and I'm definitely going with two 16mm jet type units which i can get for £6 each, running 380 size motors but now i'm scuppered on the batteries to use. Ive only got lead acid in 12v 9ah and 6 volt 7ah that i use in my other boat, but would have no idea as to the size lipo batteries to buy to get a running time of an hour plus [obviously not constant but 5 to 10 mins at a time] i assume ,which isnt always the best thing to do as this is a complete minefield to me, that i will need two 3s 7.4v and a couple of spares if i can afford them but no idea of the mah . I already have the wp1040 60amp esc's and v tail mixer which were from another project that didnt happen and hopefully they can still be used.Thanks again.Kev