Since no one else answered your post, I thought I would reply. I replaced the scope on my Wicked Ridge Invader with a Hawke XB30 SR. It is a 30mm tube, lighted reticle scope. It is a 1-5 power, but the power ring is used to dial your arrow (bolt) speed, so that it impacts the target at the various distances. For example, if your bow is shooting at 300 fps, you line up the 300 on the speed dial (power adjustment ring), and your scope will be dead on (after you sight in).
What you do is sight in at 30 yards (using the 30 yard hashmark), then your scope is sighted in with the other hash marks on the scope from 10 to 100 yards. Yes, it does have 100 yard reference points, although I doubt that you would ever shoot that far at a live target. I tried it, and it really works (my range had a 100 yard backstop, so if I missed I wasn't worried about losing the arrow). I was able to hit my target at 100 yards.
The optics are crystal clear, and no "fish eye" effect on the edges.
Down side is the price of this scope is over your price posted, plus you would have to invest in 30mm mounts, but the lifetime warranty and excellent customer service makes Hawke scopes worth the extra couple of dollars.
If you call Dave Wilkins 603-659-0575 at Wyvern Bow Shop he has the best prices on anything bowhunting related, including the optics (any you might want).
If you haven't made a choice since you originally posted your question, hopefully you will look at the Hawke scopes. You will not be disappointed. Good Luck !!