Hey there. I have the RA1181 table as well and just purchased the JessEm lift. A couple of questions for you if you don’t mind..... what method/tool did you use to trim down the phenolic base? Table saw, router....? Did you fill any of the current holes with epoxy before you re-drilled them? The picture you enclosed looks very clean so I’m looking to do the same with my retrofit.I bought the RA1181 table and used the Bosch 1617EVKS plunge router inverted under the table as a lift with enormous difficulty - so, I went with the Jessem Rout-R-Lift II which supports Bosch, Porter-Cable and some other 3.5" motor sizes. Works great! Easy to install/remove the router if you need to (I don't cuz I bought the upper end Colt hand router).
Had to trim 1/16"off each side of the Jessem's phenolic base to fit the Bosch table - and used the Bosch leveling hardware, drilled new corner locations for the Jessem holes to snug it down. If you're handy with tools this isn't a big challenge. If you aren't, find someone who is as this is an easy retrofit overall.
Thanks in advance....
B-Dawg