Indeed, I got mine from Madvapes, I believe it's 35 bucks there, so it's a good deal.
I'd suggest getting at least two batteries so you can always have one charging and one being used. The bolt can use 18500 or 18650 batteries. If you want to use the higher capacity 18650 get the extension ring. Get a charger obviously.
If you want to try out some tanks on your Bolt, I'd suggest the Artemas tanks they have at Madvapes. These days I use these Artemas tanks like 95% of the time, they really are awesome tanks. They have a notched base and also lock the carto into the tank with a threaded ring. With this design it is physically impossible for the tank to spin on the carto, or for the tank to fall off the carto. It also gives it a very nice finished look. The endcaps are not removable, which I personally like, and you don't see any visible o-rings or anything so it's clean looking.
I've tried a lot of tanks and these are my absolute favorite by a long shot. They are the most solid tank I've used or seen, and they look great, especially on a bolt, although the Artemas tanks are a few mm smaller in diameter than the Bolt.
I'd also suggest getting the tank filling tool they have on Madvapes. They have funnel type one, and one that looks like a really long drip tip that tapers to a much thinner diameter on top. I'd get both.
The funnel type one replaces the drip tip, you push the carto down until the holes in the bottom of the funnel thing reach inside the tank, then you just pour the juice down the middle.
The other one that looks like a long skinny drip tip can also be used to fill your tank, but I use mine only for removing and inserting cartos. When you push a carto into the tank the top of the carto is kind of sharp and can/will cut up your internal o-rings. Using this tool saves your o-rings as it gives you a nice smooth surface to slide against the o-rings.