Hey, that actually sounds like you have plenty of room for a 2x72" grinder, maybe you could get a separate stand for your band saw. I have my belt grinder on a 24" x 40" work bench, and it I needed to I could fit my small drill press next to it. Two feet is plenty deep since the tooling arm from the grinders hand off the front of the bench a bit for better access.
The small wheel attachment I mentioned is something that is used on 2x72" grinders. You can change the tooling arm from a flat platen to a contact wheel to a small wheel attachment etc. I'm just kind of going from your posts so forgive me if you're already aware of all of this info.
Here's a picture showing how those look. They allow you to quickly swap out different wheel sizes as well:
There are some vertical grinders as well that take up a little bit less room by simply being taller rather than longer, but the only one that I'm aware of that you can use a small wheel attachment with is the Coote belt grinder:
https://cootebeltgrinder.com/
Here is there accessories page showing their version of the small wheel, which they call a "Roller". and how it works with that grinder design:
https://cootebeltgrinder.com/accessories/
As far a cleaning up finger grooves and choils, a lot of makers also use oscillating spindle sanders such as this and use different grit sleeves:
https://www.harborfreight.com/power...s/14-in-oscillating-spindle-sander-69257.html
I used to use one of these small drum sander sets from harbor freight that I'd chuck up into my drill press for cleaning up smaller inside curves:
https://www.harborfreight.com/sanding-drum-kit-20-pc-60741.html
To use those with a work rest, you can simply raise the drill press table up so that the sanding drum sits inside the center hole. I ended up drilling a larger 2" hole (with a hole saw i believe) to fit the largest 2" diameter wheel and used that rather than the surface of the cast iron table since the wood wouldn't potentially scratch the sides of the blade, but you could probably just use some painters tape on the table to avoid that. Here's a pic of my older set up I used:

https://flic.kr/p/2iVaq3v
Let me know if that answers your questions, or raised any new ones.
~Paul
My Youtube Channel
... (Some older vids of some of the older knives I made)