If AP can't install for you, you can go for these instead:
https://www.amazon.com/TDK-TDK-7-Sti...ateway&sr=8-13

I bend the short end of the L and break it off for mine, so it won't interfere with the center brace. The stick-on track stays put very well if you have it clean and dry before install. I've been running 4 of these for almost 2 years and they're still in great shape.

Honestly, I'm not a big fan of the AP locks. My first one, the lock insert mechanism, the bit the key slides into, popped apart randomly and 2 of the pins are still AWOL in my carpet and it has been unusable ever since. They work, but for the price, I'd rather use the ones I linked above.

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