MetroHealth System plans to build a $23 million primary care and specialty center at the corner of Interstate 71 and Pearl Road. The Middleburg Heights Health Center, positioned in southwestern Cuyahoga County, will be a prototype for up to four centers that leaders of the county hospital system have said they hope to build eventually. MetroHealth's trustees agreed to buy the 10-acre lot at its monthly board meeting Wednesday evening. Officials of the taxpayer-subsidized health system announced last month that it would eliminate 450 jobs to cut $30 million from its budget. Money for the new health center will come from the $75 million MetroHealth raised in Build America Bonds, which must used for construction and not day-to-day operations.