The top could be if you could find an old unit... but, I would just scrape it as well as possible and spray paint with gray paint.

Had the vendor spray every inch of the area with mold killer just to put the tenant at ease.Got a call from the city inspector 30 min later who said the tenants were concerned for their safety. 

@Frank Geiger the interior will be typical 2x4 construction and i will be spray foaming the floors, walls and ceiling.

@Jingwen Dunford I hear you, I'd like to outsource landscaping for my rentals too but I have yet to find a cost effective option so I mow, trim and spray myself and keep the plants and flowers beds to a minimum lol.

Then I empty/ clean them out, bleach or spray killz all over, board them up, keep the grass cut and wait for the next season and flip them for 20k+ Or often times hold and rehab if the crowd has changed. 

They will come in and spray it all and be finished in an hour.

@Mathew Spray that’s great stuff.

He didn't seem really upset about it, but it got me thinking...should I have a pest control company come out quarterly to spray or should that be on the tenant? 

I've sprayed it multiple times with heavy duty vinegar to help cut it down, but of course it's continually being fed water. 

New paint, new carpet, new laminate, pressure washing, landscaping, window repairs, fixture updates, sprayed for pests and did electrical repairs.