Regardless of whom you use, i'd highly suggest putting it on a pallet, wrap the engine in plastic so nothing comes off or touches it and if possible box it over with massive "fragile, do not stack" signs all over it.
I was only passing on info from a highly respected engine builder....
I took the sump of my rb30 this morning, was actually suprised how small the bolts were but then their were plenty of bolts.
Was speaking to Tony Rigoli tonight at WSID and he said they make their own sump adaptors but use 10mm sump bolt holes (same as RB26) not the factory size. He said with the extra weight of the sump/diff the standard RB30 holes aren't adequate.
Thoughts?
I picked up an RB30 today, i'll spend tomorrow pulling it apart to see what condition its in, plenty of cans of degreaser will be used in the process lol.