Not trying to hijack this thread but wanted to show what's possible when you thin, cut back, and wire EVERY bendable branch! This is my old shimpaku which OP's tree reminded me of.
These pictures were all taken within a year of eachother. Yes there are some spaghetti branches hidden in the last picture
but they at least resulted in something decent to look at while waiting for backbudding to occur.
The shari were created very slowly over time and I agree with the posts here that shari work can mostly wait, no rush there.