Readers seem to enjoy the travails of a sink replacement contractor, so here goes:

The spray-on treatment may have worked had they pulled the drains, but they just masked up to them. $400.00 set on fire. But hey, it's guaranteed,

Until they invent an estone stretcher, the original sink cutout dictates the placement and reveals of the new. This sink cuts into the drawers by about 3/4":

The slides will have to be blocked out and the drawers cut down. This is not on my proposal, however, I gave her a free replacement faucet when the rusted nut on hers made cost effective removal impossible.

I threw in a seam refurbishment too:

Glacier White Corian adhesive with some gray tint and some black to muddy it up a bit. Not bad.