ok it's all coming back to me now... the Keg Spring bushwhack from hell was a bit of an unforced error. the better route to the Green is via Buck Canyon that I believe has a walking route in (I've not been there, heard this from
@Udink) leading to lower Keg Spring which is very easy walking. then float around Bowknot Bend, this is just absolutely lovely water, land near Twomile (there's a super nice campsite along the river) and take the obvious trail back up to surface level in the vicinity of Colonnade Arches, then it's a bit of a walk back. we woke up next to the Green and were easily at Ray's for dinner. this was just two nights out, a really great short trip.