The basic recipe you posted looks good. Personally, I would cut down on the fermentables a bit. Try to stay closer to the 1.050-1.053. Mash lower in the 150 F range. No need to ever use a protein rest with today's malts. Single infusion with a mash-out is how I have always brewed this.
I have never used Pacman yeast. From what I have read it ferments out quite dry. I don't think you would want that. Safale US-05 or California Ale yeast would be the safest bet.
If this is your first attempt at this recipe, don't try to change too many things. Brew it the way I suggested to see how it turns out. THEN make changes. Don't try to change yeast, mash temp, and ratio of spices for the first time brewing. It takes time to fine tune a recipe to your tastes. Don't go on what other people say is the way to do things (including me

) Try it first with the ratios I suggest and yeast and mash temps. Wait for the beer to be done. Then you can fine tune ONE aspect of the brew to get it closer to what you want. I know it is hard to wait. I know you have ideas you want to try, but you won't KNOW what item you changed had the biggest effect.
It may take you 4-5 times brewing this recipe to get it to where you like the flavors. Be patient.
I realize you cannot find the exact spices that were used, but try it at the amounts suggest first. Next brew you can then increase the amount to get to what YOU want from the flavors.
Half a pound of rice hulls should be plenty. Soak them in warm water before you add them to the mash. Otherwise they will absorb too much of the mash liquor and you may come up short in the kettle.
Malted wheat is milled along with the barley. No difference.