Originally Posted by
ThermionicScott
My advice is not to overthink it, like many are prone to do.
It's just a bike you're riding on gravel -- if there are any lessons to be learned, you'll learn them when you take your bike out for some rides.
My English 3-speed, my drop-bar MTB fixed-gear, and my '91 Bianchi road bike (with 700x30 tires) have all been great on the gravel. Here's a shot of that last one, after several steep-and-loose gravel sections:

Great advise on not over thinking it. I is likely you can do just fine for basic Gravel grinding by just putting 700c x 28-32 treaded wheels with with a 14-28/32 freewheel and 38 or less low in the front. 90% of gravel riding is just doing it.