I replied to your thread in the Gravely/Ariens Forum. I hope you got the Model#991208(with the Kawasakin FS691V) instead tof the Model#991201 mentioned earlier with the Kohler ZT730. Both are good engines, but the Kawi IMHO is way worth the $300-$400 extra it costs.
BTW, you asked about the Gravely mulch kit....I bought it and it is a MUST HAVE....can you say goodbye to grass clippings:0)
I also added the sunshade, flap deck striper, hex striper attachment and a set of halogen headlights(my own not Gravely's). All of the Gravely accessories are top notch quality....just like their zero turns:0)