Growing some of these species can be particularly difficult, which is precisely why they sell for such high prices. Some of the medicinal varieties, such as Chaga are borderline
impossible to grow.
That being said Oyster and Shiitake are two of the easier ones to grow, so they are a good choice.
6500k Lights are considered by Mycologists to be the best for mushroom cultivation - As I'm sure you're aware, you don't need anything too powerful as Fungi do not photosynthesize like plants. In fact, lighting isn't considered necessary at all but most professional growers consider it highly beneficial, especially if you're growing edibles and not psychoactive species. This is because light exposure is necessary for Fungi to synthesize Vitamin D3 thus giving them a much greater nutritional value.
If you decide to use lights, which I personally recommend, I would suggest going with
6500k Fluorescent Bulbs with a CRI of 98. These bulbs are a good representation of natural daylight, are cheap, and contain a good amount of UV light which helps Vitamin D synthesis and helps prevent (although will not eliminate) mold growth.
If you're on a budget, a small room air-purifier with a HEPA filter, UVC germicidal lights, etc. will help keep dust and mold spores in the air to a minimum, but the best way to prevent mold is to ensure your grow chamber/area is
sterile prior to inoculating. The best way is to use a setup known as a
flow hood but setting one of these up isnt exactly inexpensive.
I don't have any tips or advice on species besides, but there are lots of spores available from reputable suppliers online, you just have to look into whats best for you.
For an automated mister, there are a number of products out there that measure soil/medium moisture and interface with irrigation systems, so I do not see why you could not modify one to interface with a something like a
terrarium mister.
https://www.amazon.com/Reptile-Humidifier-Fogger-Reptiles-Amphibians/dp/B01CO9582Y/ref=sr_1_1?s=pet-supplies&ie=UTF8&qid=1509372514&sr=1-1&keywords=terrarium+mister
Cheers!
