First- want to say have a blast with Farmington- such a fun bunch 
Second-I agree with the above poster that I wouldn’t tell anyone he is for sale the first time out (i.e. you might not want everyone’s eyes on him). Now- if he is great, great- perhaps at the hunt breakfast afterwards you can mention it.
Also- as you get him going- I think with that bunch it would be entirely appropriate to mention to the staff leading second flight and hilltoppers that he is for sale. They will certainly be individuals “in the know” and will know if anyone is actively looking.
And again- have fun! I so miss those folks
