Alright, I'm going to order this based on your recommendations. I really hope I don't have to know any Japanese...
Well since you can get it for like $5 now, its a steal eitrher way.
I paid $100 for my first roughed up (complete)copy.
But it's straight forward enough that my walkthrough should be all you need. If you still have trouble with the menus, let me know and I'll ascii-art up a full translation and amend that ancient old version on gamefaqs.
And if anyone ever gets stuck in any PCE RPG, Tengai Makyo or otherwise, please feel free to contact me for assistance.