Alternatively, you could make some of the same sartorial concessions that the rest of us eventually made to make this work. "I only wear...." is a statement that sets you up for failure because concealed carry requires some flexibility. That PT140 is a pretty big gun for ankle carry. I have an ankle holster, and a 13 oz scandium .357 snubbie which weighs next to nothing. I don't carry it that way anymore because, as light as it is, it's like having a pendulum weight at the end of my leg, and it affects my walk.
"Freedom had been hunted round the globe; reason was considered as rebellion; and the slavery of fear had made men afraid to think. But such is the irresistible nature of truth, that all it asks, and all it wants, is the liberty of appearing." --Thomas Paine, Rights of Man, 1791