Following last week’s town vote in favor of a new $5.8 million emergency services building, Tisbury selectmen this week continued to wrestle with the problem of what to do with town workers who will be displaced by the new construction project.

The new building will go on the site of what is now the town hall annex, which means those people will have to work elsewhere. Which means a trailer.

Or maybe two trailers. Maybe single wide, maybe double wide. If they will fit and it doesn’t cost too much.

With construction on the new building due to begin in just a couple of months, a lot remains to be worked out, as became clear in the meeting.

As currently proposed and costed by the town administrator, John Bugbee, it would be just one large trailer. But that is not big enough, in the eyes of a number of town workers.

And so, after much discussion on Tuesday afternoon, Mr. Bugbee was sent back to the drawing board.

“The selectmen, when they charged me with this project, asked me to come up with what I thought was adequate. I thought a 24 by 60-foot unit, a little over 1,500 square feet would be adequate, given the current annex is 1,900 square feet,” Mr. Bugbee said after the meeting.

“Some occupants of the annex thought that a little too small, and they would need two units. In the end the selectmen asked me to go back to the drawing board and see if two units was doable from both a logistical and a financial viewpoint.”

But two trailers looks financially problematic. Even as currently envisioned, the project is sailing pretty close to the $115,000 cost approved by voters.

“The initial cost estimate [for one] was $111,632,” he said.

“But a lot of the numbers in that calculation are high, probably a lot higher than what the actual cost will be, because I thought that the safe thing to do. And it factors in possible problems down the road in installing things, a disruption factor, if you will,” he said.

“The actual cost would probably come in a lot lower.”

That said though, Mr. Bugbee conceded that getting two trailers for the price would be a difficult task.

“But that’s what I will be trying to do for the next week or so,” he said.

In other business on Tuesday night, the selectmen approved a 20 per cent residential property tax exemption, thus maintaining the position of recent years which gives year-round residents a break.

But they changed the relative rates for commercial versus residential rates. The change sees commercial rates set at 130 per cent of residential rates, down from 140.

The selectmen also voted to reappoint Ned Orleans to the Martha’s Vineyard Commission for one year, and gave conditional approval for a new operator to run tour buses in the town.

Barry Lopes’s company Native Island Tours, proposes to run buses from Tisbury to Aquinnah. The selectmen’s approval is contingent on Mr. Lopes reaching agreement with the Steamship Authority.

But they bridled at a second proposal, to run smaller trolleys on an hourly basis between Vineyard Haven and West Chop, amid concerns about traffic and the privacy of West Chop residents.

They are awaiting more details.

The meeting also agreed to a new regime of fees for shellfishing licenses.

A resident family permit will rise in price from $35 to $40, a nonresident permit will rise from $300 to $400 and a senior permit remains at $5, but eligible only to people over 65, rather than the previous 60 years.

The changes also demand more stringent proofs of identity on the part of license applicants.