RE: Phoenix Extra 330S 60-90 Size
wingboz, like Rick said, sorry to hear about the motor mount issue, but it really isn't that critical to have the exact motor mount.
In fact, I usually put the engine in a different position than that depicted in the instructions, so I often use different mounts. The model is none the wiser.
It's easy to knock the blind nuts out and re-rill. Just thread one of the bolts in and tap out the blind nut. To fill the hole, I often use a chopstick (rom Chinese take-out orders) and CA it into the old holes, cut off with a razor saw and re-drill the new holes, per the photos. The pics are from a Seagull Super Decathlon, but the prinicple is identical.