I've built several real nice gun racks and gun cabinets and yet all I have at home is a 2 gun rack that my dad made backwards. lol By backwards, I mean for a right handed gun it displays the gun with the chamber to the wall. My dad is not a hunter, never owned a gun, never gave it a thought but I am left handed and do have 1 left handed gun that fits nicely in the rack. lol
I don't have pics of any of the cabinets or gun racks I've made but they are pretty easy to make. I've made rustic looking gun racks out of barn boards to fancy hard wood cabinets with glass doors lights and locks. The trick to any wood working project is to find plans that require the tools you have. My first gun rack was made with only a circular saw and drill/driver. Simple tools, rustic wood, simple plan. If you have access to Norms Yankee Wood shop or just a hatchet and hand saw, find a plan that fits your tools and abilities.
Vipertech, what did you have in mind? How handy are you and what tools do you have available? Maybe a pic of the space you want converted? Also how much do you want to spend? My father and grandfather were both wood workers, I grew up in a wood shop and was Head of Major Repairs at a very large library wood furniture manufacturer for several years. I have my own basement shop that's way too small with too many tools, wood, sawdust, mess and unfinished projects but I could probably give you some ideas if I knew more about what you're trying to do.
I attached pics of a couple wood working projects that I've done in my shop. These are boxes that each have a hidden secret drawer built into the bottoms. One big, one small box. The other pics are for another similar box that I've inlaid with purple heart and blood wood inlays that I haven't finished yet.
American by birth, hunter by choice.