[ETO_Alpha] Alpha 87A Shipping Guidelines

[ARS NZ3O]

Maybe I just haven't looked in the proper place.

I know the Alpha 87A, when new, shipped with the
transformer in a second box, since that's half the
weight of the amplifier.

I am shipping this back to Alpha for service before selling or trade-in
and I wonder if I need to separately pack the transformer and
the tubes, or can everything go in a single box without
disassembly?

If someone has a link to proper return shipping packaging, that would be 
great.

73, Byron