c#/d     a#/c  a#    g
    1  2  3  4  1  2  3  4  1  2  3  4  1  2  3  4  1
    hold throughout

I'm trying to get my solo improv for this progression better. And I would love it if some more knowledgable people could post some good scales to go with this prog.

Also are these chords' names correct?

I was thinking of using the 5th to solo and base it off the root. (G correct?) what other degrees could I look into.

The timings on this song are quicker than I usually play. but they give the right idea.

Thank you for your help. And any additions/changes suggestions I'd love some constructive criticism.
e -------15^1-
b ----13-------
g -14----------
yea g blues goes perfect but i wanna branch out into, playing 5th's say. to give my solos a kind of build-up to the G scales ill end on. OR to match the begining g scales.
e -------15^1-
b ----13-------
g -14----------
playing fifths? what's that supposed to mean? i hope you don't mean changing the scale.
if its a 12 bar blues, just play around the 5th on the 9th bar (if i got my math right lol), cuz its:

I - I - I - I - IV - IV - I - I - V - IV - I - I (you can play the last one as a V too i think.. i use I almost always tho, personal preference)