I used to do this "trick" a long time ago and it's a lot of getting used to but.. with your right foot's heel operating the gas pedal and the toe resting on the brake pedal, pivot the foot releasing the accelerator and tap on the brakes immediately. Otherwise, practice the clutch-gas-brake coordination.
In the same way that when confronted by a stalling engine due to erratic/low rpm during roadtests on automatics, my left foot rests lightly on the brakes and when in need to stop, I brake with my left and ease my right foot on the accelerator just enough to prevent the engine from dying.
..napangiti tuloy ako sa predicament mo; sakto lang ang space, inclined pa! Another trick I've thought of is make a permanent not-so-steep cemented wheel chock or hump for the rear or front tire, whichever is convenient to you, I think it would be the innermost wheel, adjacent to the wall. Pag kalang ng gulong mo, sakto!
Kay thread starter, i wouldnt worry. Your rear brakes be it drums or disc are also used when you apply brakes. Probably your wear and tear would be your parking cable. Pwede maputol agad or you will need to adjust it more than normal.
Ang pinaka possibilidad na maputol ang hand brake cable ay mataas. Ok lang yang ginagawa mo but make it a habit to inspect the cable regularly para maiwasan ang surprisa.
Ganito rin ginagawa ko especially on a traffic stop tapos incline. Eto kasi minsan ung downside kapag manual, kelangan talaga kabisado mo ung clutch+gas combination at dapat kaya mo syang gawin ng mabilisan or else ma-aatrasan mo ung nasa likuran mo, like ung nangyari sakin before na antagal (siguro, 1.5-2 sec) bago kumagat ung primera . Now, if ever my sudden stop na incline, engage ko lang ung hand brake tapos dahan dahan akong mag-ggas, kapag feel ko na humahatak na, dahan dahan ko namang bibitawan ung hand brake.
Reminder: dahan dahan lang tayo palage sa paghatak ng hand brake lever para at least mabawasan ung possibility na maputulan tayo ng cable neto.