Roosa master pump model numbers

I need a little help with a pump I was supose to get a AC 200 injector pump but when I went to pick it up the guy has a shelf full of pumps and he said they have been there for a while and he would take scrap price for all the AC parts he has I have the model numbers for the pumps on the 180, 185, 190, and 190xt, but I need the numbers for the 200, 210, 220. I hope there is something good not a bunch of garbage I know all  his family ever ran was the orange and they had only one either 210 or 220 he can't remember which but they did have several 190xt's and a couple of 200's so he tells me.

I checked it out better this morning since I had some time there looks to be about three good loads of usable parts on my 42' gooseneck they have all been in a barn since the late 80's I counted 15 injector pumps so far and there are a couple of tractors that have been broke in half but due to the angry little yellow jackets and brush growing abound them I can't get close enough to ID them yet but I told him I would take everything he had.

i would be interested in a dm4 its a 4 roller pump if you would want to part with one. i would expect one that needs rebuilt. i want one for my xt when i make it a puller.

thank you