@David Friedman there are generally a few brokerages in each market that heavily deal in the restaurant space, it would likely be good to get on their radar, and to @Evan Polaski 's point, having your data/features on hand to "pitch" the site is likely a good call.Other items to note would be just to understand if the current configurations of the retail spaces could be reconfigured for a restaurant, things like grease traps, larger water lines, patio requirements may all be things they are looking for.  

I have configured it to start on the day I choose and it ends after X number of days. 

With the proper Bed/Bath floor configuration you could rent out rooms.5. 

If it is not, I will either not include those unpermitted bedrooms in my valuation by doing a "cost-to-cure" to put it back to the original configuration or I may do a "cost-to-cure" to estimate the cost and/or market affect to get it permitted.

is it just a shower stall or a tub configuration ?

This is how you should do zEstimate.max(5 same bed configuration/neighbour).Basically you have to find the zEstimate for your neighbour.

Would this configuration typically attract renters at all?

@Matthew Paul most towns, when doing a CO inspection, check the permit history before they come out to see if the town card (beds, baths) matches the actual house configuration.

Expenses are going to vary based on the unit size and configuration, how many people are staying there and what their usage of the property is.

The parks I've seen that are more successful have a spread out configuration and home owners rather than renters.