If there is an approved takeoff flap setting, you should use it. The airplane will fly better, and the landing gear will take less wear and tear.
As for the glide, don't necessarily apply the best glide technique, configuration, and speed to EFATO. in that situation, you work with what you have, and get back on the ground safely. If you are so certain that EFATO is a real risk, a long runway is your best safety feature.
John Farley, in his excellent book, advocates getting it back on the ground, not stretching the glide. Avoid planning to make the most of the glide distance when it quits, leave that for the sailplane pilots, or powerplane pilots flying just a bit too far off shore when it quits.
For leaping out of your little runway in the Maule, pick the suspiciously nearer plot of land, and figure out how to get into that with a big sideslip, getting more flap applied as you need it. Don't stretch the glide to get down, if you mis judge, you have no options. You're better to roll through the far hedge at 20kts 'cause you could not stop, rather than bash through the nearer hedge at 70kts, 'cause you could not make the field as you intended!