I would suggest that you look at other De-Sta-Co options for drawer latches or orient those such that their "draw" is in the direction of the drawer's opening/closing. Those will work as oriented, but they're 90* to the way they are intended to work so they'll have to be adjusted rather tight to not allow the drawer to wobble in and out. I fear that given the MDF foundation that keeping them tight will be a uphill battle. If they can wobble then over time they will wear out the slides and jostle everything in the drawers, promoting wear on those items too.
Might peruse the Austin Hardware page and see what else might work for your application.
I have considered something just on the sides of the bed of Patch. Though drawers have a large appeal, I'm reluctant to loose any height in the bed as I can just barely kneel in there now. Loosing some height would make dressing that much more difficult.
A trick I've been told about, but have not seen, is to use the carpet itself for the 'hinge'. With the carpet glued or screwed to the movable panel the carpet will flex enough for the occasional access. The original application I was told about was used to hide beer just fwds of the step in the bed of a teenager's FJ-40.....
I used to swerve around my hallucinations, now I drive right through them.