Vintage Lego TRAIN Parts Lot Set 7722 Freight Cargo Battery Train

Description

All that's shown in the pictures: various specialty parts that go to train set 7722.
Incomplete set
No box or instructions
No condition issues to plastic.
Haven’t plugged in the battery box so not sure working condition, no sure whether the cable works.
But I can say I wasn’t into trains until the Santa Fe sets came along. So these are lightly played with if at all, then stored for 30 years in a cool dry closet.
Will add pieces to the lot as I shift through my brick bucket.