amazon is your friend. napier and backroadz i think
i had one camping and i chose the one without the bottom, just the shell. it hold better in case water gets in around the seals. more space and easier to install.
you can do the install alone, but it will take a bit of time.
only one bad thing after heavy rains, the roof holds a bit of water that eventually will start to drip in if you dont clean it.
it is as it lacks full support on top part middle way. For occasional camping is a must, for 3-6 days or more, make sure you drain it after the rain. Ot get a tarp on the top side, dont cover the sides, it will hold all the humidity in and everything will be dump.
after having it and camping like that, i wont buy it again, i am getting a hard shell and get a tent that fits around the opening:
https://www.amazon.com/Backroadz-10...-Tent/dp/B076279SVB/ref=sr_1_2?ie=UTF8&qid=1526931398&sr=8-2&keywords=backroadz
happy camping !