A midrange kitchen remodel now costs close to $78,000 nationally. An upscale version runs past $154,000, according to Remodeling Magazine's Cost vs. Value data cited by HGTV. Those figures don't include the 20% contingency buffer experts recommend setting aside for demolition surprises: water damage, code violations, the kinds of problems that don't show up until the walls come down. The timeline runs six to ten weeks on average, material costs have climbed 5–10% in recent years, and delivery...