8v92's should burn 9-10 gph for both at 1000rpm's. At 800 rpm's your looking at 7gph probably.
Yes, except the biggest variable of them all is the weather. Wind, rain, seas, current and more and it changes every 10 miles and every hour....
You should be able to truck a 42' if need be, with removal of a few things bridge etc...... There's a 46' I think on here that has a lot of...
I'd say you're close. What about exterior maintanence- washing, polishing SS, waxing etc....... that's 5-10k per year..... Figure bottom...
