I'm not sure you appreciate how much work it is to both "write a detailed spec" and then also to "write a more modern client". All of that on top of a system w

I'm not sure you appreciate how much work it is to both "write a detailed spec" and then also to "write a more modern client". All of that on top of a system which has likely changed in the intermediate years. Basically, you might as well milk the existing system for as long as possible and then replace it with a completely new system that probably runs on newer hardware (1990s instead of 1980s), is much more maintainable and does things in a more modern way.