Table Time

I don't know what kind of work space you have available, but I keep my welding and grinding area on the opposite end of the shop from my work bench. Welding slag and grinding debris ends up on everything and that's the last thing you want in your assembly area.
plus you want to worry about catching stuff on fire. 1/2 my yard next to the garage is gravel for this very reason.

My shop is 24 x 31. I like the idea of two separate tables but I’m not sure I have the room for it
all depends on how much elbow room you want. but you almost never have enough work bench space

might want to check out the garage journal