I guess he expects that you don't know that a "post hole digger" costs $50 at Home Depot.He probably also expects that you don't know that adding 6" extra concrete to a 1 foot diameter hole requires less than a half of an 80 pound bag of concrete. 24 of these holes (8 x 3 buildings) would require about 15 extra 80 pound bags of concrete.You can get those at Home Depot for about $4/bag, or about $60 extra dollars for 15 of them.That means the extra materials for the job total around $110.How much is he charging you for the extra work?

When I checked the US Dollar over the previous five has not significantly changed in value when compared to the Euro, The British Pound, The Japanese Yen, The Australian Dollar, or the Canadian Dollar.

Spending some more time pounding the pavement and finding people who want to get in on such deals is probably the best way to go.

One homeowner may comment that they were referred to the vendor, fought tooth and nail, and got restitution, whereas another less fortunate homeowner my have been told to pound sand.I have several examples of situations where an HOA vendor has caused direct damage to my property, I've complained to the HOA, only to receive a letter (almost immediately, certainly faster than any other requests), stating that the issue is not the responsibility of the HOA.It seems they have a form letter that states "not our fault" that they crank out immediately.

IMHO you are being pennywise and pound foolish if you're going to try doing fix and flips without proper permits.  

Their policy is no pet over 20 pounds.

Second you've now got a hedge both for and against the US dollar and the pound.

So she spent the next several days catching feral cats and delivering them to the local pound (they wouldn't trap them for us).

When we did ours we went to a metal yard and bought the steel sheet, which was priced by the pound.

I even had to replace a submersible well pump in steel piping for the sprinklers at like 8 pounds per foot x 40 feet.