Remounting the engine shouldn't be that big of a deal as you already took the old one off. I'm not familiar with the evolution but generaly the 52 should have the same footprint as the 46. Double check the firewall too, it seems it took the brunt of the damage. People tend to look at you differenlty when the engine falls off in flight! take your time and ask questions. Installing the new engine should be straight forward ex. four bolts hold the engine on the muffler comes of and the throttle linkage. Hope this helps, Mike