Engeman pledged to voters the $7.62 million project would include no change orders, and he challenged audience members to check in Herrin where M360 recently built an elementary school addition with no change orders.
Buck questioned Engeman's logic, noting when the new justice center was built the county had over $100,000 in change orders.
"I've never seen an estimate yet that was perfect," Buck said.
Dexter Edmison said his frustration with the project is the right people are not asking questions.
"Instead of a Cadillac for existing systems, have we looked at other systems, and if so, why haven't people asked that question?" Edmison asked, in which Engeman responded that all systems will be examined when the bidding process begins.
Sheriff Roger Mulch, custodian of the courthouse, supported M360's efforts to date.
"I've talked to Rend Lake Plumbing and some people in the Metro-East. Personally, I feel real comfortable with M360, but I think you need to check into these things. Maybe piecing out the work is a good option, but it's probably going to cost more money," he said.
Engeman said the total project cost is a turnkey operation that will include roof repairs, window replacement, limestone skin improvements, HVAC upgrade, electrical distribution upgrade, meeting ADA challenges, lighting fixture upgrades, plumbing upgrades and space programming changes. He said if the project is approved by June 2014, it could be completed within one year.
The next town hall meeting is scheduled at 7 p.m. Tuesday in the Waltonville Grade School cafeteria.