You might also consider trying to raise the quality of the 10-inch and bringing in one or two national chains that will sign triple net leases

I've seen designs for a soundproof wall where top and bottom plates are 2x6 and you put 2x4s on alternating edges every 8 inches (16" on center for each side).

If we buy a regular one with a "normal" top, we will have to remove part of the wall behind it or the stove will stick out about an inch.

The main line is in the street and just a 1 inch line needs to be run to the house (which will be circa 30-40ft from the supply).

The fact that they would respond with anything other than "YES" or "BAFO because of multiple offers" is beyond me.You gave the seller an inch of rope and now they're trying to strangle you with the whole darn thing -- I would say you are comfortable with the offer you gave at the terms enclosed.The why is sort of irrelevant, they obviously have something in mind but if you put a property on the market and someone offers you more than asking, as my old English teacher would say, "shut up and take your apples."

The pilot holes for the lag bolts are typically 1/16-1/8 of an inch smaller than the diameter of the lag bolt making the mechanical base act as a sub flashing, and then there is also a chemical sealant (caulking, geo-cell, Henry's... depending on the installer) sandwiched between the roof decking/paper and the mechanical base.

This would include removal of old concrete, #3 rebar, 5 inch deep concrete.

I would only inch it up annually like $25 on a $1,225 rental rate. 

They sent me cabinets that were in different boxes, different construction, door sizes were off a half an inch, a pinstripe was a different color, they couldn't fulfill the order with the cabinets I ordered so they gave me different cabinets and said that they would work?

There happens to be a WEALTH of knowledge on every inch of this site.