Sorry - yeah
Getting Metal Spanky Clean
So with metal parts there's basically three ways to do it. I'll keep it summarised but let me know if you want more detail on any item...
1. Hand polished - This means either sanding by hand using paper, or using a rotary wheel (either a bench one, or a 'flap disk' attached to a hand drill). I tend to use the flap disk method for the flat metal panels, like ball guides. For all the small parts I find this way too labour intensive to be worthwhile.
2. Tumbled - metal parts are adding to a 'tumbler' unit (the kind used for cleaning rifle shells), along with some tumbling medium (walnut shell, corn husk, or something else) which vibrates. After a day or two, the metal comes out nice and shiny. How shiny depends on the medium you use, however it's a tradeoff between how much gunk and rust you also need to cut. I use walnut shell, some brasso, and two days tumbling for all small metal parts, screws, posts, that sort of thing. Others have their own recipes.
This is the tumbler I use, you can pick them up cheaper second hand on ebay (like most things!)
https://www.amazon.co.uk/Lyman-1200...ocphy=1006886&hvtargid=pla-527517443409&psc=1
3. Ultrasonic cleaner - (disclaimer, I've never done this) parts are added to an ultrasonic cleaner unit, like the kind used for cleaning jewellery. From what I understand, this is good for removing muck, but not so good for removing rust.
--
I use a combination of 1 and 2, and then hand polish some things afterwards using mothers mag & brio pads. Everyone will have their own brands I'm sure.
https://www.amazon.co.uk/gp/product/B00068GEJM/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1
Cliffys
Cliff is a dude in the states who I believe was a metal fabricator in a previous life, or is currently, or never was, maybe I'm making it up. Anyway he now fabricates all kinds of flat metal parts for pinball machines - the ones he's most famous for are protectors that cover the gobble holes that always get munched by the ball over time. Cliffys are basically the defacto standard way over protecting those holes, which is why everyone calls them Cliffys, even if they were made by him or not. Like how we call plasters 'band aids' in Australia
I believe
@James is now stocking a lot of Cliffys parts over at The Pinball Bazaar. Cliff also makes ramp flaps (like you guessed, the metal bit at the bottom of ramps) so hopefully you might be able to pick some of these up at the same time. I think yours are well and truly salvageable, however they are cheap as chips and look great new so if you can get em, get em.