Fun project !

I cant offer much advice , as i'm a bit scatter brained with my own projects, ---- but I like the compact double setups better than the triples personally (and for my use)

My reasoning is likely due to my fitness , but if I am using a 10 cog rear end with the first 6 cogs closely spaced (the go fast cogs) -- the rest I can go with bigger gaps so I can have some "Oh Thank you !" gears if the little short , steep hills that surround my area turn out to be longer than expected

Most of my projects are late 80's to mid 90's era machinery though and I am using triples on them (Campy was late to the compact double party ) --- - with a triple and close ratio rear end, I almost don't notice the gearing jumps some days until I am out of gear -

I even experimented with running a MTB 12-36 rear end with a little doo-hickey called a goatlink, which spaces the derailleur out further to give it more reach ---- this was on my "daily driver" carbon bike with a compact double 50/34 , as I wanted to make an assault on a local hill climb ---- It would have worked with a long or mid cage derailleur too , but even with the link, covering a 36 tooth granny with a short cage rear was a bridge too far -- as it was, since it was a one day event, I just used the derailleur limit screws and locked out the big ring

Please excuse the late model carbon content -- just showing the pic of the bike dressed out for the event ---- the 12-36 looks odd back there but saved my chubby butt on a long sustained 8% climb -- The bike wears cyclocross bars also, -- not exactly the same as randonneur bars, but close .
I don't need that type of gearing most days though, but its nice to know it will work with a long cage derailleur