When I saw this for sale I had no idea what model it was but I wanted it. All I knew was it was alder with a maple top and had the pickups replaced with a zebra TZ/AN set.
So I removed the neck when it got here and it's an IRG720, a special order for Ishibashi Music to their specs. I love the special models they order as they always seem to be near perfect.
I mean hell, it's a maple boarded, alder bodied RG with edge trem, matching headstock, natural binding and classic HH layout. Needs the hardware cleaned and given my special corrosion treatment but the neck is clean and all the important stuff works as it should.