Im problly going to share to much but I hope it helps. I just got myself a nice new used Velo Orange Piolet. This is my first ever bike build. I've ridden just a little bit of gravel(1-200miles) around Des Moines, a little bit of single track around Des Moines, and loads of mile on the central IA paved trail system. Mostly on Road bike or fat bike.
I have been reading a lot of reviews and write ups on RG forum. I found the Schealbe Rock Razor, seems like it could be a fast rolling ride for the paved and gravel bits I do and nice cushion for the tracks Ive been getting into. Anyone have experiance on using an
enduro semi-slick tire? I'd also take any suggestions rim width. 
https://www.schwalbe.com/en/offroad-reader/rock-razor.html