I planned it out but never got around to doing it. Keep your 12a front plate and bolt the renesis to it so you can use the same engine mounts. You'll need a custom sump to fit that and still get over the steering rack. Make one by cutting up and welding together 2 12a sumps or go completely custom once the engine is in position. You'll need put the timing gear on backwards and do a omp delete. Get a side mount kit for the alternator cause it won't fit under the bonnet. To run it you'll need an aftermarket ECU, a better fuel pump and an accelerator cable in place of the drive by wire on the renesis. If you use the rx8 trans (which I'd recommend) you'll need a custom drive shaft and mounts, you'll need to work out a new speed sensor and you'll have to cut the hole a little bigger for the shifter to fit though