A PM prompted me to post this.
As you likely know I bought myself a set of R-Net systems. THREE COMPLETE SYSTEMS about 2 or 3 years ago.
And I did this because as of today the 120A R-net power module, CJSM2 joystick, and the ISM6-L seating and lighting module is currently the best system on the market and is all you need for a full rehab powerchair with every seating goody, and lights possible. And because all the alternative systems are fully locked down and therefore hard to get parts for, and not programmable and so basically useless if you care about having a chair that steers properly!
So I bought 3 complete systems. The WHOLE LOT was around 1000 uk pounts. Or 1200 dollars. Or 1/3rd of that per complete chair for brand new or unused parts.
Today I added to that a CJSM1 joystick. Why? Because joysticks wear out first! And because I "FISH" on eBay. When theres a bargain its usually gone and invisible 5 mins later. So I just bought a NEW UNUSED colour joystick, for £100. Actually less (80) as I made an offer...
But heres another one for £80 https://www.ebay.co.uk/itm/156465844360
If you just want a spare as a backup heres a basic one for 50 https://www.ebay.co.uk/itm/296742691209 all just plug and play.
These things keep appearing on eBay, buy them while you can.