To me the question is 45-60 percent of what. If you have substantial income and assets then I don't see it as a problem, if your income is low and your portfolio is small then I would think it is a very bad idea.
I try to live within my income and look at the conventional wisdom as a guide but not get hung up on it. The percentages for individual budget items are only a guide and will vary greatly from one person to another. If a person is frugal and doesn't maintain a car they can allocate a higher percentage of income to other things in life like housing, travel, etc...
I would look at the amount you are currently spending for housing and compare that to the amount you expect to pay in the new area, see if you have the ability to comfortably cut other areas of your spending to make up the difference. Be brutally honest with yourself and if the answer is no then I think you need to look at other options.
Consider house/apartment sharing with one or more people to get a place to live with the amenities that your desire or moving to acheaper area of the same city or state, etc...
Also as you become older you can look at slowly depleting your investment portfolio by a few percentage points each year to help keep pace with inflation. I would not worry if I started to gradually spend down my portfolio when I hit my mid 80's or beyond.
No one size fits all answers exist, we all need to come up with our own plan.
Good luck!