I've read a lot of conflicting information regarding when work can be done on single flush pines, in particular Mugo pines.
Some say if you have wired/styled you can't re-pot till following year.
Others say do both at the same time in spring
Others re-pot in mid summer only
Time to cut the crap and ask the experts!
repotting is usually done when the candles have elongated and started to open up which is late September in my area . I would avoid drastic pruning and repotting at the same time.