I always had reasonable shipping times from Mianne. Tim provides all shipping information so you will know what to expect and when it will arrive. The product is first rate! Consider the liftgate if you can use it. Believe me crawling under the layout can be trouble for aging knees.
Yes, the Mianne Benchwork can be taken apart easily. The bright side of this that I’m sure your wife was considering is that you can reconfigure the layout making it different, smaller or bigger quite easily. If you ever reach a point as I did about a year ago and find that the layout is “finished”, you can tear it down, design a new one and use the same benchwork and rebuild bigger and or smaller but probably better that before!
Several years ago, I took apart a large layout in PA, packed all and redesigned and built a new layout in CA using the same Mianne parts in a totally new configuration.
You are on the right track by choosing Mianne! FWIW my dear wife even suggested that I build my CA layout in our living space! AND, yes I considered the layout “finished” last year so I took it apart and am rebuilding smaller (9’ X 9’) in another part of the room, allowing the “great room” to become a more normal living room, rather than a train room. I have many leftover parts that I used to build a display unit for trains that would not fit on the smaller layout and shipped other parts to my brother in PA to add another 4’ X 8’ section to his layout.
Bottom line, you can’t go wrong with using Mianne Benchwork.
Good luck and great enjoyment with your new layout!
Stan