New business van - custom shelving & signage

[cyndiwise]

Custom shelving and bulkhead added to new business vehicle - how to expense on Schedule C?

Is this claimed under 'Other Vehicle Expenses?

Or, is it considered part of the new vehicle cost?

What about signage added to the new vehicle?

My husband owns a Schedule C sole proprietor plumbing business, and is the only employee. He drives a van that is used only for the business, so his vehicle expenses are 100% deductible for the business.

In 2019, the old van broke down and was not drivable so it was scrapped and he bought a brand-new cargo van that had no shelving for all the tools and small parts needed to conduct his plumbing business.

Thanks very much for your help!