That would take care of the shirts problem, But the jackets problem is separate
If you change the shirts shoulder, do it first.
Then see that all your shirts sleeves end at the same place.
Then do the suit sleeves.
People come in all kind of shapes., RTW makers can only make there garments in one average shape and hope fore the best.
You have a pretty good idea of the solution. Your tailor will grab a handful of cloth and make some chalk marks. This will show
him how the new seam will be made.
When the alteration is done the thigh circumference may appear too large, but this is a separate problem, and a separate
alteration, for a separate price.
It probably means that its fused front with a chest piece..
Just another way to not admit that its not a true canvased construction.
Its called "float" but it does not move around from place to place.
It just hangs there.
When I was a young buck like some of you guys, I wore desert boots. I think it was for less than $12. 95. I loved those DBs to the death in spite the lousy fit. I would still wear them if they came in a double wide width. Anyone know of a look alike that comes in that wide a width.