You don't need amazing wrestling to beat Khabib, unless you are competing in pure wrestling with him.
You need enough be able to quckly scramble out if he gets you to the ground. You don't need deep wrestling knowledge, you need to act very fast and don't allow him to progress his positions. You cannot have more knowledge and MMA wrestling experience than him anyway. Not even if you are an All-American.
The most important thing is to have anti-wrestling tactics ON THE FEET.
For example - shit ton of jabs or just any type of filler volume, lot of hand checking, framing building structures that stand between him clasping his hands and your ass. Pricise circling footwork. This is what will beat him. The good wrestling is nice and all, but if you can't buy enough time to stand on your feet and score points, you won't win.
edit: I summarised the most important things in these points:
-- Use a lot of feints
-- A lot of bodypunches, bodykicks (precisely maegeri because is fast and hard to catch)
-- Threat the fence as it was on fire - stay well away from it
-- Rely mostly on pitter-patter combos
-- Use hand trapping and hand checking - useful to guage the dustance and sence incoming TD attempts
-- Use wristcontrol when defending TD's on the fence, 2 on 1, control his posture
-- Never allow Khabib to clasp his hands behind your back
-- Don't back away in a straight line, always in a circular line
-- And don't back away without offering some type of an obstacle in front of Khabib - it could be an extended arm, a counter shot or even a well executed feint. It buys time and space to escape