If the fitment is similar to what I have, the tops of the timing belt covers contact the front firewall. Adjustment of the engine bay was needed, but minimal. With mine, I had no reservations about making some cuts and hitting it with a hammer. Moving lower would still be good for mine though for better reach of the shifting cable. From the start I have planned to fabricate a bolt-on top cover for the engine.
I'm really looking forward to the finished product becoming available.