Get a lawyer. Dont bother with AutoLoss or similar online claims. Those led to a dead end. I'm 18 months into a DV fight and the lawyer moved the amount more than I did in 12 mths, even with 2 reports from online "appraisers". Lawyer will take a cut but the lack of head ache and possibility to get a lot more is worth it.
I'm an engineer and have taken graduate courses in valuations of projects that include tax depreciation. I used KBB estimates, dealer quotes, deprecation estimates, and even tax depreciation tables. I had an appraiser that relied on quotes from dealers too. All of this got me maybe a $500 bump in DV while I spent likely 100 hours fighting, researching and putting this all together. Damage was around $7500. DV estimates were $12k-$25k. Insurance offered me less than $3k for DV after a lot of fighting, $8k with loss of use and DV. They won't even reveal their calculations/analysis. Lawyer has gotten that to $12k and hasn't even filed the court case yet (COVID court shut down).