So I ended up building my own phone.
Backstory:
A few of you know me for my hardware modding adventures.
I've replaced the broken USB port with a new port. I've then removed the fingerprint sensor to replace it with a secondary USB port for a more comfortable landscape mode.
I filed away some parts of the display mount to make it more durable and I was about to replace the battery while reusing the old BMS.
I did all of that to make my Pro1 work as I wouldn't want to live without a keyboard phone.
Sadly, the issues didn't stop.
The camera quality is bad, it's horr
Self assembled fits better, I guess.
https://community.fxtec.com/topic/4062-self-built-slider/?tab=comments#comment-68381
For your order: you can change the shipping method after they received your items. Then you can check if other shipping methods are cheaper than the selected one.
Strangely, it was more expensive to deliver by ship than via AirMail for me.
I can confirm this working. I am able to install the display driver on the replacement screen attached to my pro1 and then it is working as expected on the Pro1x.
One possibility is to find a small bluetooth keyboard that can fit inside normal phone case. Then you could just buy 2pcs of cases and put phone and keyboard to own cases. In the end you could build the sliding mechanism with magnets (see Jolla the other half keyboard) or something else.
Here is video and couple pictures if the idea.
https://youtu.be/FqYX0ZbC5uA?si=itPnKwmK2GAorypX
I think that another Rii keyboard could be usefull (‎4.3 x 2.3 x 0.4 inches so 10,9 x 5,8 x 1,0 cm)
https://www.amazon.com/Rii-Bluetooth-Rechargeable-Handhelds-PS3-BLACK/dp/B0B46F8RS6
I have just given up, and requested a refund from Paypal. They Immediately refunded the $35,53 USD, but the original $21.98 USD, awaits a reaction from the seller - but at the least I got 61% back, I can live with the rest being lost....