Packing

That's too much. The suitcase will be the only thing to take besides the tripod. One type of film only will be taken, only glass plate holders will be taken. Removeing the film holders from the suitcase makes room for the one or two glass plate boxes. One is enough. The film changing bag is not really needed. The spot meeter will fit in there also.
The rule of KISS applies. Keep It Simple Simon.