As other commentators have pointed out, the images used are a huge problem and red flag for me. Why would I pay for this when you’re using the kind of photoshopped images of a product I would see on a cheap Chinese reselling site? Additionally you show flexible solar panels as part of the kit breakdown but every other image of solar panels is of a rigid, non-flexible kind. So which is it?
Essentially to me you are selling your personal support and the lack of hassle for the end-user to source their own parts.
I have a hard time trusting your parts when it doesn’t even seem like you have them yourself based on the images.
(I don’t mean this to attack your character. I fully believe that you care based on your other comments. That is how it reads on the site though)