I'd probably go with cobs. They are easier to install AND remove. There is less worry that shore power will have issues. (mainly melt the tape) Then again price wise 10 panels for $17.99 is hard to beat.
For the porch I am using a 120 1210 cob and boy does it put out the light. It easily lights up 10-15 strides from the camper and I could at least see something coming out of the treeline 30 strides out. I tested one at .51a draw. I don't have the link here but it is in the back end of my thread with pictures from one person that uses them.