Are there sources for learning more about the proper "Big Eye" techniques?
Get some binos(12X minimum) a tripod and adapter and glass....that's all there is to it.
The binocs allow you to use both eyes (which is much less eyestrain than a scope) and the tripod keeps the view stable allowing you to spot small movements. Great for deer and elk.
If you want to "try the idea out " first. Doug used to have 12X Vortex Vultures for like $175 IIRC. A buddy got some and they were great value for the money. Very close to my Minox 15's
Find a cheap tripod and you're in businness.
You can always sell your car and upgrade to the Swaros with a Bogan tripod next year....
: )