I'd definitely set up some sort of display... certainly not your full collection, but maybe one easy-up/down prop. Whatever it is, it will probably be one of the best things in your area. OR- you can simply do some sort of lighting effect- even if it is a single strobe placed somewhere clever.
If I were only doing ONE thing, one of the easiest and cheapest bang-for-your buck effects would be to simply buy a roll of red plastic sheeting from The Party Store and tack it across EVERY window in your house. Then, leave all the lights on. In a classic farm house set away from other light sources, I can tell you that the effect is quite impressive. Since you'll just be moving in, it would be easy to do.
While I absolutely would never advertise or promise awesome treats, I WOULD go the extra mile with the treats... especially if you aren't expecting many TOTs.
But let me share this cautionary tale with you...
<lights flashlight under chin>
<cue scary music>
I live in a big house at the end of a dead end street out in the country. We would only get 17-25 TOTs at best. So I figured I would provide killer treats to those who bothered to ring my doorbell. Luckily, there was a Big Lots store doing some remodeling- and so they priced their entire toy dept. at 90% off. SCORE! I bought nearly everything they had left and handed out dolls, remote control cars, razor scooters, games, and other cool toys on Halloween. I did this, along with a great big display. The kids participated in a "Fish Pond" game played with Halloween duckies swimming in a huge swirling dry ice caldron.
Well, our house instantly became "THAT" house. The TOT numbers grew so fast that I could no longer afford the lavish treats. Within 3 years, we went from 17 TOTs to 280+... including becoming a stop on a neighborhood hay ride! The local high school only graduates 145 kids- so to have 280+ TOTs is pretty darned impressive out my way.
So be careful what you wish for! But I can attest to the fact that:
If you haunt it, they will come.