You definietly have the right ideas. If someone is posting about a pain or injury, I do usually add a comment or two.
Heres something else to think about... I do deep tissue massage as well as train and corrextive exercise. So if you asked me how to prevent shoulder injury, Id first want to know what limitations you already have, if youre already experiencing something, and hows your posture. There are generalities that most would do well to pay attention to, but when I work with someone, its specific to that person. If you say youve had a rotator cuff tear and repair already, id make sure your pecs remain properly stretched out, and would suggest you not flat bench. Id show you some exercises to engage rhomboids.
Most people never stretch enough, and most people wait until theres a problem to get body work done. If you do those 2 things, you have a much better shot at staying injury free for longer
My two greatest complaints are my shoulders coming forward from working in an office environment all day and the similar cause (plus how I grew) for my lower back imbalance.
For both issues I've finally gotten one of those standing desks so hopefully that will help. Specifically for shoulders I was told to do scarecrows which are incredibly difficult and tiring- but before every chest or should work out I use a band to do Y's, T's, W's, and I guess you'd call them H's, by moving my arms in those patterns while tensioned with the band. I dont know if those are successfully opening up my shoulder capsule (which has caused the bicep tie in to my delt to be inflamed which is the cause of my irritation when lifting) but I haven't had the pain while lifting since starting them. From what I understand most lifters are strong with internal rotation but suck with external. I also do a decent amount of back work and consider my back more impressive than my chest, though neither are by any means spectacular.
For lower back my hips apparently will sit slightly offset from sitting in a chair and favoring one side and so squating, deadlifting, SDL's cause my favored side to tire and strain as my opposite side isn't bearing equal load. I have no idea how to correct this but it's only been the past 2 years I had these issues. When I lived in Japan I was able to do these exercises fine and before then as well. I really want to get back to doing those exercises as 1) they are fun to do, and 2) I consider them core and necessary for building quality muscle. So any ideas you have I'm all ears.
Also if you're truly going to be travelling to offer massage if you pass by this way I'd happily take one as my chiro at home has already stated they aren't looking forward to the state I'll be in when I get back. And foam rolling/ racquetball don't seem to help as much as I'd like.