Camping world off of freeway 84 has several louvered tailgates for $125
They also have a bunch of other stuff in their bargain area for your trailer, all at 50% off or more.
You might be able to bargain ( i.e beg and plead) them down a little further

may be worth a trip to take a look then.

I'm a sucker for extra lights, where exactly of the freeway are they?

meridian rd. go south to overland then go west for a spell. camping world sits right beside the super slab.

oh, and some of them 5th wheel t-gates are now 60 bucks.