This will decimate all after you put about 10k in parts and overnight from japan......
LOL sorry i couldn't help my self I know its played out.........
It sounds like you are getting in WAY over your head! You need to give this guy a SOLID time line or he is going to FREAK!! He seems like the type that wants it done NOW. Give him a dead line for parts and what he want done, write out a day by day chart (give PLENTY of time) and give him a set cost. That way you are covered when it takes 15 months to get this done.......
Have fun!