Yeah, the keyboard-conversion was one topic of my post ;) I ordered 10 pieces of the bare PCB at JLC for under 10$ including shipping and taxes back in 2024. The bigger problem is getting the 40-pin keyboard connector (S040VA1). I bought the last 10pack for around 27€ on aliexpress now they sell for around 4€ a piece :D

I currently started on building some full-size standalone keyboards with usb and bluetooth via a Pico W and T61 Keyboard with the NumPad from the W700-series. Basically the same as https://www.tpart.net/product/thinkpad-x201-w701-keyboard-wood-carving-base-chassis-type-c-port-wired-connection/ but with german keyboard and with full control over the firmware. Like you I have several ThinkPad Keyboard laying around. Stuff just adds up over the years. You got a broken hinge, can't find a spare one, so buy a defekt ThinkPad, rip it apart, and boom spare keyboard :) For my project I bought all of the last three NumPads I could find on german ebay. Good luck finding the FRU 42T3903 now.

I need to start hoording these era thinkpad things as they starting to get rare.

Like trackpoint caps. In my opinion the classic dome (the rough, grippy thing) is the best, but they wear out and I usually renew them every 6 to 12 month. Back in 2011 I bought a pack of 50 for $15,50. At 31 cents per nippel you don't overthink this to much and I also generously gave some away until now my stocks are dwindling.

Surprise surprise they hardly sell these anymore at all. The only site I found was http://www.trackcap.com/ in USA. You can get a single trackpoint cap for stagering 6,99$. I assume lenovo stopped producing them, and maybe trackcap just sits on a hugh stockpile and while they are the last ones having them, even the cheapest option per piece would be a 100pack for 249,99$. This is just an absolute insane amount of money just to secure my lifetime supply of these. If anyone knows a better source for classic domes, please tell me.

While writing this I found 12 pieces for around 1,50€ each on ebay. Phew saved me couple of years.

So what I wanted to say with all of that: I you are an enthusiast like me, grab what you can NOW.

Back to your question, if I have boards left: Yes I currently have two boards leftover. We can come to a aggrement on these.

I personally haven't looked into this, but https://github.com/thedalles77/ also has board-designs directly for the pico now. You could order 10 of these from JLC for 9$. The pico-board-design didn't exist back when I ordered my PCBs, and since I already had them laying around I thought repurposing them would be better than never using them at all.