I have a little victorian, and want to take out the new overhead garage door and replace it with wood french doors. I found a beautiful pair of slab doors that I would like to use. I plan to frost the doors so you cannot see inside. The garage is not attached to the house, and will become my art studio. Any advice for feasibility, how hard this will be to do, what to bear in mind/and or avoid? About how long should this take for my carpenter to install? Thank you