“Suggestions?”
Yes, normally this situation would call for highest and best use analysis. In this case, the first two elements, legally permissible and physically possible, can be skipped, leaving financially feasible and maximally productive.
Feasible means the use must generate adequate revenue to justify costs (i.e. acquisition, construction, retrofit) plus a profit for the developer. This isn’t irrelevant because the subject can no longer be considered improved since all the equipment has been removed.
Financial feasibility depends on market size, sustainability, and potential value of area or location whereas maximally productive means the use must generate the highest net return to the developer.
48 CPD X 26 days X $8.50 X 0.6 / 1.5 = $4,243 maximum allowable monthly payment
In other words, if the total debt service for acquisition and improvement is equal to or less than $4,243, the investment would make financial sense.
Of course, this brings up the issue of business operating risk; will the site generate sufficient gross sales. Obviously, it did not or the property would not be vacant.
So, the question becomes will this site be attractive enough to generate sufficient gross sales with only one in-bay in a formerly closed business?
I would consider diving deeper into this before spending any real money.