Hardware upgrades for roadhog 4

I have many questions I haven't really thought to ask until now.  As many people have noted, things like the patch window has always been very slow, but now the preferences window can be extremely slow as well.  That got me thinking about the machine I already own...

Question 1:  Can I upgrade the ram and SSD?  I'm assuming I can go to 8GB and a 256GB SSD without much issue... why would I do this?  Many reasons.  This machine is over 10 years old and version 4.0 seems to be showing that more and more.

Question 2:  Is there a drop in processor upgrade I can look for?  I am plenty familiar with building pcs, putting an upgraded chip into a similar socket type is more of an AMD thing so I don't have much hope here.

Question 3:  Can I simply drop in the motherboard from the RoadHog 4-21?  It's nearly impossible to find actual documentation of the internals so I'm left asking the questions here.

Question 4:  Can I install motorized faders in the roadhog 4?  Again I can't see the internals of the hog 4 or 4-19, I'm not sure if there's extra hardware to control the motors themselves.  If it's just an extra pcb... is there any way to install that into the roadhog?  (I don't mean physically fit in in there, I know I could, there is a lot of empty space.  I'm aware that the programming for the roadhog and hog 4 are a little different, pcbs a little different... does that make this upgrade impossible?