Raised storage wooden bed

Please note, you must have experience in making/engineering furniture. I am not looking for a CAD designer who doesn't understand the engineering of storage furniture!

I have a small spare box bedroom. At the moment it has a double bed which takes up 95% of the space. I want to start foster caring so it's important that my spare room is more versatile. I need to use the height of the bedroom to created storage and more of a warm room.

I'm looking for a furniture designer to create clever plans for a raised wooden storage platform bed or loft bed. The room has a slanted ceiling and fire escape window that you have to have easy access to. This is a job for someone who really loves design, wants to design something that is going to make a genuine change/help people!

I have a carpenter who can build it so the plans must be clear with mechanisms, dimensions and detailed construction plans.