I'm seeing that it's the large home park off Grange RD. If Holly's been taken away, I don't see how that could have been done with anything but a vehicle.
There seem to be two ways vehicles can access the park; from Grange rd and from Reppert Lane. From an abductor's point of view, I'd say Reppert lane was much more favorable - just that huge junk yard on one side, so not many people likely to be around early in the morning.
But still, this would have to be one really reckless abductor to kidnap a woman on a weekday morning, with those homes being so close together, and no fences or anything between. And being a small, enclosed community where a strange vehicle might be noticed.
Another possibility; There seems to be a big, empty lot off Hamilton Blvd. IF Holly's home was near the trees and bushes that border that lot, I can maybe see someone parking up in the lot, sneaking through the bushes into Holly's home and then forcing her to walk back there with them. Then maybe getting onto the 222 highway and getting far away.
To be honest though, looking at where and when and how it seems Holly disappeared, I can't help feeling someone who lives real close is more likely to be involved. I think this is one of the cases where SAR dogs could be really, really useful. I hope they have been used. Tracker and cadaver. Because a dog looking for a live person might not be any help at all if that person is deceased. I know that's horrible, but it's even worse to wait too long and then wish it had been done before. There will be a volunteer team who can help if LE aren't able to, I'm sure.
Has the home been forensically searched as though it is a crime scene? And is it sealed now? Have her accounts/cards been checked for any activity?