I am using this quarantine time to find new projects and stay busy. One thing on my list has been to convert a guest bedroom to a office combo. There is currently a double bed in there that is quite useful when I have guests, but in the way a majority of the time. Before this I had taken the air mattress route, but as my guests "demand" better accommodations I upgraded, when I replaced my own bed. I am looking to get feedback on design. I know there are DIY Murphy Bed kits that contain all of the hardware, but they run ~$300. There are a few interesting DIY makers that have substituted cheap hinge hardware by using hefty door hinges or boat seat swivel hinges instead. Those are great solutions for the frame pivot, but they don't offset the weight of the bed.
There are a few options I was thinking of to deal with the weight:
1. Install mechanical springs to counter the weight
2. Use some type of gas spring
3. Use an electric motor/ hoist to automatically raise and lower
There are positives and negatives of all three options. I think the third option would be quite fancy to be able to drop the bed with the touch of a button. Electric hoists are a bit overkill, the cheapest one I found is $50 and has a 2500lb capacity, while a servo motor is going to be too weak.
Looking for any great ideas to make sure this is usable even when I am not there to open or close the bed.