Is building a new home easy?
No. Building a new home is not easy. It is a very technical and time consuming undertaking, where every single decision can result in another problem that can cost time and/or money.
On the other hand, ordering a new mini home is much-much easier. Once you have developed a floor plan, you only have to choose a few colours and maybe some additional features, and then you are done!
By far the easiest way to purchase a new home is to contact a retailer that can help guide you through this process and try to find a model that comes close to what you have in mind for you and your family. Then all you have to do is tell the retailer what you want in your next home. The retailer can then order your new home for you (with whatever minor custom adjustments required, if any) and that is that!