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Small Solar Panel supply and install for sleepout

We have 2 under-10sqm cabins being installed on our property next month. Having had a small Solar panel installed on our campervan relatively cheaply in Auckland we're wondering if we can do the same for these. One of the cabins only needs to run a couple of light bulbs and a power point. The other does need to run indoor and outdoor lights, a security camera, security alarm, and Power Points supplying power to desk lamps, led manicure lamps, a laptop, a heat lamp etc. Looking for prices for each please. Both have full sun.