Hey Jim,
Yep, you can do this with verified trials (and with a lot less steps than you're describing): https://wyday.com/limelm/help/trials/#verified
And if you want to associate emails with trials you can do that as well: https://wyday.com/limelm/help/extra-data/
In the very near future we're also adding the following features:
1. The ability to search by the extra data.2. Linking verified trials to product key activations (so you can see where the conversions are).