Seriously... how much
would anyone charge to do that the right way??? Yank the old meter off the wall, 6X6X4 NEMA 1 pullcan, maybe 30' 1½" EMT and 40'X 3 #2THHN, and a meter/main breaker can (to eliminate the unfused feeder situation) landed on the side of the new garage a couple ground rods and 15' #6 AC and this would be good to go
Hell, you could probably salvage the old riser and feeders if they were really that hard up (I cant tell what condition they're in)
(This garage looks tiny, like Stuart Little might park there
PS. get the lazy phone guy to stop tying to our risers!