Some important notes: I do not have foam tips for them and won't be making or providing them. These are 1018 steel and not stainless. I had trouble sourcing stainless locally. 1018 was chosen for its workability, availability and relative rust resistance. 1018 is what I make the majority of tooling fixture out of in my shop and I've had many of them for a decade or more with no rust issues...I do occasionally wipe them down with Boeshield. That said, it is entirely possible for these to get spotty and over a long enough timeline, it'll likely happen.
Someone on the Parker FB group pointed out that the original trem bars had a little curve to the inserted portion. I wasn't aware of that, but made a little tool that does the curve. These will sit snugly in the hex bushing but are repositionable and obviously removeable.

If you need one and don't want to DIY it, get in touch.
Also, after a year of looking for an 11 spring and noodling a little with the 9's that are on my Deluxe, I've decided that the guitar is not for me and I'll be putting it up for sale soon.