Hey Vaughn,
My event space is 2400 sqft based on size you have a good size venue to start off with.
Websites: It will be hard to find a good website, or books.
You can find some videos on YouTube but more people in the event space industry sell courses to get access to the information.
Where should you market your event space:
This varies so you should try a few different ones and find which ones work best for you.
These are some that I use. THIS IS NOT AN EXTENSIVE LIST these are just enough to get you going:
Google my business (FREE)
Google Ads (Paid)
Eventective (Paid)
Event UP(Paid)
Peerspace (Takes a percentage of your booking but FREE to list your event Space)
Splacer (Have not used yet but currently setting up my profile)
Yelp (FREE)
Gigster (FREE to list you event space)
Facebook market place (FREE)
Instagram (FREE)
LinkedIN(FREE)
Your local Chamber of commerce
Partnerships with local planners
I do not know your exact area in Idaho so I cannot give a definitive comment on your pricing but $250 is typically what you would pay for a community center which is different from a dedicated event space.
You also have to factor in cleaning your venue which can take about 2 to 3 hours if doing it yourself so you should price that into your rental price.
Also, with a price point that low, yes, it is accessible to more people but you open yourself up to more people that will not respect your event space and would be more prone to damage the building potentially.
Because you have a full kitchen and bar you could operate it as a ghost kitchen. You could also rent it as a production space, meeting space, co-working space, etc.
Given that you are not looking for a lot of business but just a little bit of extra cash flow doing one (1) rental per day is easy for 1 person to manage so I would not worry about attempting to have 2 events per day so maximize profits.
As for add-ons that will be based on the quality of product you provide and what the going rates are in your area. For example, I include a Bluetooth sound system and upgraded chairs but I charge to rent my projector and screen but some of the other venues in my area include a projector but charge for upgraded chairs. You will have to play around to find out what works best for your market.
If you will be running it as a business it would be best to get your business license for it. Alcohol laws vary state to state and city to city so since I am not in your state I cannot give a set comment on that but typically you will have to have a licensed bartender onsite which is also good for you for insurance purposes.
You can get a $2 million dollar insurance policy for the entire year for around $1000 it would be better for your peace of mind to get it for the entire year.