Smallest radius for HO scale? - Model Railroader Magazine

The era I am going to run is form 1971 to today.

The over all inside dimensions of this large room that makes up the one half in the basement is: 12' wide x  over 35' long.

In the 8' x 10' space I was planning on a shelf style layout as 2 of the walls are the outside basement walls. Where the layout can go is at one end of the room.

 What takes up the rest of the space in this room are bicycle storage, building material storage, work work space and electric table top tool storage.

Of all of this the only part that is NOT negotiable in terms of relocation is my bicycle storage. 3 bikes hang from hooks with the tools and other gear on a shelf unit or the floor under where the bikes hang from. Cycling is my first love, above all other "hobbies", but only during the spring and summer. During the cold months this is the only place the bicycles can be stored.

Across from where the bikes are stored is material storage. I have lumber, paneling, metal and insulation materials organized and stacked on the floor or leaning against the wall. The material storage runs along part of the length of the 35' long span.

In front of that near the material storage and next to the bicycle storage area, is the area i use as a large work space. I need at least a 4' x 8' space to work with.

Next to that, now at the end of the room where the 8' x 10' space is for a train layout, is where I store my table top electric tools. Router table with attached router, small table saw, miter saw, etc. They will have to be moved when I build a layout there. I think I have just enough space to find for all of it in my shop on the other side of the basement. The other side of the basement, in the same room as my shop is also where the utility infrastructure is located so no room at all for a train layout or for working on large projects.

I would love to relocate the metal and building materials stored in this room to somewhere else. Some of it I would be able to get rid of as scrap. Also if I take up the work space I use for projects for a train layout I would only be able to do such projects outside on the patio, during warm months because this room would then be the train room/bicycle storage facility. I would love to use the entire length of this room for a train layout.

If anyone has ideas for material storage I'm open to suggestions. Before you recommend anything I do have a detached, single car garage and could store some of the materials in the rafters. I am open to other ideas as well.