To replace my Floorboard switches I bought a kit from Amazon that contained 280pcs of 14 different switches. Two of the switches would work fine in the Floorbord, the difference being the height of the button. The actual switch is a 12mm x 12mm x 4.3mm momentary contact or 12*12*4.3H. Do a search and you will find either that switch or an assortment containing them. I paid something like $11 for the 280pc set. There were 20 of each size. If you can solder AT ALL you can easily replace them. You can use a taller switch as long as the button itself doesn't touch the mechanical button if you aren't pushing it down. I would think up to a 7mm tall would work but you need to check your pedal for how much gap there is between the current switch and the mechanical button.
The kit I got is no longer available but if you go to this link, you will see others.
https://www.amazon.com/dp/B01N76KBC6?psc=1&ref=ppx_pop_dt_b_asin_image
https://www.amazon.com/Eowpower-15Value-Momentary-Tactile-Assortment/dp/B06W9PDYBD/ref=dp_prsubs_1?pd_rd_i=B06W9PDYBD&psc=1
I bought an AXSys212 cheap and found the Floorboard was flaky so I replaced the switches. Turns out the issue was with the chip that handles the front panel and Floorboard switches/pedals (U7). There is an issue with ESD killing the chip because it's not protected. If you plug the Floorboard/LAN cable into the amp first you risk static to the other end killing the chip. I replaced U7 and added the protection diodes. All is well with the world now. I also found the AX2 upgrade kit (ROM, front panel and knobs.)
Awats