I had my 1942 1.5 ton flatbed appraised by Zachary Romer with the Automobile Appraisers Association. He charged me $200 for the appraisal and I honestly can say I was extremely pleased with his report and valuation. He compares comparable vehicles in his appraisal.with yours....yes condition and originality come into play in his valuation. Actually with these older trucks the more original they are the more he values them.