In this instance, SAB or Address?

[Maxine]

A high-end event-rental company doesn't have a storefront (it is home based). It delivers to homes, hotels, airports, and event locations within a 50 mile radius. So, technically a SAB.
The company wants to improve rankings in the seven cities within that 50 mile radius.

They don't have a GBP yet. I'm going to set one up for them. I know Google wants me to set it up as a SAB, but I'm concerned it will hurt their rankings.

Since they have the money, should they set up an office location in a the most competetive city to use for the GBP? Or should they stick to the SAB?
They really want to overtake this one competitor in that major city.

 

[sd1111]

A high-end event-rental company doesn't have a storefront (it is home based). It delivers to homes, hotels, airports, and event locations within a 50 mile radius. So, technically a SAB.
The company wants to improve rankings in the seven cities within that 50 mile radius.

They don't have a GBP yet. I'm going to set one up for them. I know Google wants me to set it up as a SAB, but I'm concerned it will hurt their rankings.

Since they have the money, should they set up an office location in a the most competetive city to use for the GBP? Or should they stick to the SAB?
They really want to overtake this one competitor in that major city

They must have a warehouse, though, for their inventory, right? Is there any opportunity for them to have signage at the warehouse location and use that as a physical address?

Most event rental companies I have worked with do have a physical address. If the competitor they want to overtake has a physical address and quite a few reviews, it will be an uphill battle to outrank them as SAB.