Sorry for the late response.   Missed it.

Also sorry I cannot give you any input on the stuff.   Coop country used their poultry spreader and they were not happy with the spread (very uneven).   I think they modified another spreader, or bought another just for ash.  They were going to charge roughly the same as commercial P&K, and nothing for the spread, or micro's included.  Long story short, if ya spend 65 bucks on commercial P&K, plus 5 for spreading, you'd get the same analyses with ash for 65 bucks.   Clear as mud eh?

As for contacts, depends where you are at.   I know terstegs have a bunch of ash stored in the old trojan plant SW of Olivia, that is only used for storage untill spread.

Good Luck