Your wise words are welcome my powerpuffy friend.
Your sugestions will be edited in where I think it works. Hopefully it will reduce that headache this story is giving you a bit though I can't promise complete relief.
I think the mountains 'real' name transpates as Fist Perfection Mountain though the Romiji escapes me. I'll consider the other points.
As to the fire, well that was unavoidable with that scene really and you can be assured that it's the only time that it will be like that.
To answer your last bit. Yes it is. This main story is about the senshi and the events which go from there. 99.9% of stories like this skip this bit entirely and I can see why now. That's simply not what the stories about.
The lock expiring, again yes but it wont be as messy as you might think since I've already put some groundwork for that particular cleanup in.
Finally I agree that you have a couple of points, there are 2 stories to be told that I can't really do in the main story. I do agree.
I'm not someone for empty words. I promised Dumbledork a new chapter of RR and it's being written as I write this (well not quite but you get my point).
So since your so interested I'll state that I will write 2 short/side stories about those sections of time. 1 of the Pluto years (

) and one for the Granpa years ( :p ). I don't garrentee length or quality but I do garrentee that they will be written and that some of your concerns over skiped events will be covered via reference in the main story itself.