This Japanese steakhouse and sushi concept opens its doors on Thursday. Suki Akor is tucked into a 5,100-square-foot space at the 10-story Embassy Suites hotel, which is under construction on East Martin Luther King Jr. Boulevard. It’s been 18 months since the restaurant announced plans for that site. Budget and construction delays slowed progress, says Dino Crnalic, one of the principals behind the venture. The restaurant cost more than $1.8 million. “It took us a while, but we really…