Mark :

The panel and controller you noted should work? (but you will be stuck with only 140w max) so if mounted fixed it should be getting 19Ah day and 30 Ah if movable.  In any case it should allow you more time between motoring. A side note: 2 hrs on the motor is unlikely to get 100% on the bat and more likely brining you up to 97 to 98% charge+/- even if the alt does not seam to be charging. The solar is slower and if matched with the loads can get you to 99.9% or mostly full charged. For most of us around 4PM.

Suggestions, On your next trip before solar, use your multi meter to check the usage (cell, TV, etc) and mark down how many hr's you run them at that current draw. Then when planning  $$$ for solar you can match it up,  so fixed mount = panel watts/12V = (Amps max) next  * 8hr / day * 30% sun ave angle = your load /day in amp hours.

If you need a little bit more than a fixed install, then make the panel mount so you can tilt it. This can double the output if you change it every hour, but if just twice a day you can get 10 to 25% more out of the panel as angle does mater.

Best of luck:

Norm

I am not sure how much Battery you went with;  Last I read was 160Ah +/- which would match up well with the 140Watt Panel, but if you are adding refrige etc. you will need more Ah. which just means when you add more panels the charge controller will need to be changed to a larger one as they do not parallel. 

Sounds great!

One item I did not note: is the weight of the traditional panels, mine are around 16# ea. which is not great, the 4#'s is much much better. 

It sounds like you are well on your way to having a pretty great system. Just take care of the water levels, and watch for corrosion on the connections (clean and make sure they are tight) and have fun.

I would be interested just how many Amps the flex panel produces (test at some point during the day when the Bat is low 12.5 or below)  above 12.5 the controller may reduce the flow as to not overcharge .  

my 12 year old 80watt panels do about 5.2 +/- Amps/ea at 14.5v on there best alignment = hand aligned and not mounted. Also at full sun, no clouds or smog.

I think I got burnt on the solar panel , I don't think it's a Sunpower as it doesn't say Sunpower on it and it's made in China . No big deal . I made a frame for it out of Oak, it clips to the life line and has a strut going down to the Yankee car "T" track . Anyhow I got it all wired up , and no smoke or sparks  . On the controller , I was instructed to install a jumper (supplied)  because I'm using flood batts. as opposed to a lithium  batt . this jumper puts the controller into equalization mode 14.5 volts ! This makes me a little nervous , when I first hooked up the panel the batts. were at 12.3 volts in only 2 hrs. the controller went to float mode , but the controller was still putting out 14.5 volts ,  It was a long day and I had to shut down the operation , I forgot to check voltage with the panel off . Also with the panel not hooked up to the controller I put the volt multi meter to it , I got 20.7 volts but then when I switched over to amps. I got zero , I should have got something like 5.7 amps , so I'm concerned about that . But the thing is charging like crazy .   I will use and observe more , but so far I'm really amazed at this stuff .   

Thanks for the words Tyler , that put me at ease . Today will be the first day I have it running all day . I'l be checking for that magic float number .