2019 will be the 40th anniversary of Alien, and I'm renewing work on my costume. Here's an update:
The first pair of shoes having been too small to wear, I've acquired a new pair of similarly styled white canvas sneakers, made by Polo / Ralph Lauren. Despite their brand, they were still about $20, used, on eBay. For those curious, they are the "Clarke" model.
They fit well, but have very smooth soles and little traction. They might benefit from some sole replacements, but I have not committed to such a mod yet. As far as construction and accuracy go, these are less accurate than the PF FLyers, regrettably. They have a smooth toe 'bumper' and no 'air holes' at all. Additionally, they have some Polo patches which must be removed, and "Polo" text on the tongues and heels.
I ran them through the wash a day ago, removed the ankle patches, and am debating my next step. I purchased a can of white fabric spray paint. I am inclined to paint my D-rings with a heavy duty enamel before assembly, though I haven't yet purchased such. It also occurred to me that my vinyl for the straps seems thin compared to what we see on screen, so I am considering gluing it back-to-back to increase the thickness.