Focus on the Total Cost of Ownership (TCO) rather than just the sticker price. Negotiate for extended warranties (18-24 months) on core components like the main oil pump. If purchasing multiple units, request a volume discount of 5-10% or ask the supplier to include $2,000 worth of free consumables (seals, filters, and pipes). Always clarify the Incoterms; for heavy machinery, CIF (Cost, Insurance, and Freight) is often convenient, but FOB (Free On Board) allows you better control over shipping costs if you have a reliable forwarder.