I didn't mean to say that either, and I'm sorry if it came off that way. What I mean is that 1 or 2 years of experience is more than enough to try and take on a project like this, even if it's for the (perhaps very) long term, and that you're selling yourself too short when you say you "aren't anywhere near ready enough" to do it. If you're not ready now, you'll never be ready.
Many a project started out with some inexperienced person saying, "I want to do this thing that hasn't been done before. Let's do it!", rolling up their sleeves, and diving into the work and studying that comes along with the project. Even people with only one month of experience in the basics will run into the fact that they don't know enough, and the ones who are truly ambitious and determined will then proceed to learn what they don't know. And if the end result is that they realize they've been biting off more than they can chew, they probably haven't gone far in enough that it was a waste of time, and can still work on smaller projects that gradually grow in size. The process of building such a large project is often an end in itself, because it's a valuable learning experience, even if it fails. And if it succeeds in the end (probably after multiple failures), that's even better.
Also, did you miss a "don't" in there, before the last "know"? Supposing you did, even if 75% of people don't know, they'll find out, and then they'll know. It's not strictly a bad thing; it may just seem a bit annoying to somebody who "took the easy way" and created a game out of RPG Maker and Pokémon Essentials.
Actually, I started from battle engine up. The first thing I ever did related to a Pokémon engine was a command-line battle interface in Java. Then I worked on overworld.
http://fourstarmon.com/ <- this is the "Four Star Mon" I've been referring to this whole time, in case anyone wants a link or couldn't find it on Google or just didn't know which result it was. I made a thread for it in the Beginner's Showcase once upon a time, but that was 1.5 years ago.