Hi Keith, if I understand, you were asking whether it's better to get something basic like a Milspec, or get another Springfield 1911 with more features.
It all depends what you want, but if your goal is to get a basic pistol and build it up with quality, custom parts over time, you would do better to just start with a basic Milspec, and then add the parts that YOU choose when you customize it. If you get one of the more expensive Springfield models, such as the loaded models, they have some nice features, but tend to compromise and to use a lot of what are known as MIM parts, which are not quite as high quality and long-lasting as the custom steel parts that people commonly get to upgrade a 1911.