You did almost all you could with the only exception being to check the trasformer to see if both coils were copper in which case you coud have broken it down in a matter of minues to seperate .75# # 1(maybe) and .3 # #2 copper wire. also 2 small motors. I get paid almost 2x what you did on transformers and motors BUT only because of 2 reasons.
1. I save up until I have at least 200# or more of motors and transformers
2. What my Local yard pays more.
The key to scrap is volume and if you are like me and limited as to storeing for volume you just save what make since for that space.Beyond copper, brass , SS, Motors/transformers and cast I only keep what is flat or dence such as the bottoms of MW or the side plates from computers along with rebar cranks, grears, Transformer plates and such, things that can fit in the drawers of a file cabnet that will make it weigh over 500# when full. That means I has to pretty dense. I can fit 2 cabnets + some pipe and rebar in my truck at a time for a trip to the shredd yard.
My storage area for metals is only 8 x 10
File cabnets come and go but atmost I will only have 2 4 drawer
I have a lrge landscape bucket for motors when it is stacked over the top it is aleast 200#
a 6 gallon bucket for trmsformers that holds around 100#
a 25 Gallon Trash can for insulated wire 30#
5 gallon for brass 50#
I think you get the picture.
I deal with 2 and sometimes 3 yards as I need the money or some of my cans runeth over checking there rates and deciding what fits my needs.
Any copper I strip gets held seperatly for special occations or April when prices seem to spike most frequently.