After doing a TON of research, I have come to the following conclusions.
BEST - Have a machine shop build you a "stronger" version of Choat's side mounted mount that mounts on both sides of the receiver an still lets you still able to use your Iron/Tangent sight. This option also allows you to still take down the rifle like normal an no need to re-sight your scope (that is if you left your scope on the mount during take-down of course).
OK -
Choate side Drill & Tap mount, allows you to still use stripper clips. Cons are it's not very strong, would break easy if you dropped the rifle on the scope, only mounts on one side, an obstructs your line of sight to your old Tangent/iron sight, even more so if you add a shell deflector.
Scout Scope = Replaces your tangent sight, great for a little red dot. Cons are you lose the tangent. Again not very strong.
UTG Leapers Tri Rail for the front - This big ass thing works well, an even has a sight channel so you can still use your tangent sight, con is that it prevents the "tool-less" break down option an you have to re-sight your scope once you put it all back together. This hulky thing is compatible with the wood stock as well as the after market stocks from Tapco or ATI.
WORST -
Any of those "dust/receiver cover mounts, utter rubbish. They take a TON of filing, an will not hold zero. NC star makes the worst an UTG Leapers versions are no better.