Yes AE makes steel Outdrives, Titanium outdrives might work too.
The rear hub i nevre heard About.
The one-way I don't know cause i run a spool what most people do ass well.
If your going to TUb chassis Remmember mill chassis. If dont want to mess w/ warping chassis go w/ the BMI or the WArpspeed Chassis which are stiffer and look nicer