Estimate present value of tax depreciation claim for two types of equipment

We sell a product that potentially offers a tax benefit in the U.S. compared to competing products. I'd like a CPA freelancer to 1) validate that they believe (or not) that our product does in fact offer that benefit, and 2) estimate and document (add references to support the estimate) the present value of the tax benefit. Our product uses IT equipment to transmit electricity (I'll share a video with the CPA), thus we believe it should be treated as computer equipment (5 year recovery). The competing product is essential traditional electrical infrastructure (transformers, conduit, breakers...), and thus subject to a 39 year recovery period. I'll share whatever information the freelancer requires to do their evaluation. Best, James