The Michael Myers coveralls seem to be the trickiest thing to get. Are these coveralls sold at TOTS accurate to the original film and worth getting?
https://www.trickortreatstudios.com/halloween-michael-myers-adult-coveralls.html
The original coveralls are hard to find, but you can get a pair of Big Macs and modify them to match these, or Sears (Which these are) or Red Kaps, or Reeds
I also got a pair of Red Kaps and I can confirm they are pretty legit. I think these are the closest to the original 78 coveralls you can get aside from finding a old Sears pair on eBay.
https://www.amazon.com/gp/product/B007EYZAPA/ref=ppx_yo_dt_b_asin_title_o00__o00_s00?ie=UTF8&psc=1
I use a set of charcoal Red Kaps for my H1 cosplay. Honestly, it’s cheaper than the ToTS ones, and they’re actual coveralls designed for working, rather than a polyester costume piece.