This should be only an experiment at best. Please don't waste so much time trying to turn a tool into something that it is explicitely not. If you just want an

This should be only an experiment at best. Please don't waste so much time trying to turn a tool into something that it is explicitely not. If you just want an IDE experience use one that already exists. If you want to build your own out of plugins, use something like Emacs that has something like that as a core feature. If you really want to learn vim though, then please learn the IDE that it is already integrated in: Linux. Linux based OSes are the most extensive IDEs because in the past nobody thought there would be a difference between a programmer and a computer user. So it's the most complete system that you can find. And additionally to solving all your programmer problems you also learn an OS and its components on the way.