Working with Metal Halide lights.

So I've got another project I'm trying to figure out with a new-to-me source of light. Basically I've been trying to grow habenero peppers all summer but amazingly growing plants that originate from Mexico in the cold Atlantic weather doesn't go so well. Anyways its getting to cold for my small pepper plants so I've had to move them indoors. Right now they're under a T5 high output fluorescent light but I've been told by plant experts that it wont be enough light when the plants get bigger. Thus, after much research I've concluded I'll need a metal halide lamp to grow these plants indoors.

My first question is, is 1001bulbs.com a good place to buy from? None of the hardware stores where I live sell what I need to buying online is my only viable option.

I need 400-500 watts for the plants, I like the look of this bulb here: https://www.1000bulbs.com/product/6529/MH-04005.html

I know MH lamps need a ballast, does this one look suitable? [URL="https://www.1000bulbs.com/product/116866/BU-1111247SCTC.html"l[/URL]

I'm assuming the ballast doesn't include a socket but I cant find the appropriate socket on 1001bulbs so does anyone know where I can find one?

Will I need anything else? Is the wiring for these things complicated or is it as simple as AC in one end halide lamp on the other end?

Thanks for all the help!