Shane, from everything I've read, the M50 or S50/52 swap is impossible with an ix. Great car, but rare, meaning, specific parts for the ix are likely more $ than a std RWD.
Hope all is well, as I haven't been to an MR2 meet in a while. Kyle's car is almost done...but I'm holding off getting a new car now til the Solstice comes out...so will continue to beat on the 318 for a while.
2004 Chevy Silverado 3500 Tow vehicle
1998 323is Track toy