[Christ]

Yes, you could also just weld in new mount locations where necessary.

I don't believe you'll need to change the OEM d-side mount, though.

The plate I'm talking about is the portion that bolts directly to the transaxle's gearbox housing, which then becomes the mounting location for the rubber portion of the mount. It looks as though it will come pretty close to bolting up to the Insight's transaxle, and if so, it may be a good starting point for a mount, which would only need a gusseted plate welded to that plate, then welded/bolted to the OEM D-series d-side engine mount.

The thing about the canted axle is now obvious. You haven't actually placed the engine completely where you'll be fastening it, so that axle looking crooked is a non-issue.