If the refiner or distributor terminates, cancels, or fails to renew under AS 45.50.810 (c)(1), (2), or (3) or for any good cause other than under AS 45.50.810 (c)(4), the refiner or distributor shall compensate the dealer for the fair market value of the business, excluding goodwill. Refiners or distributors terminating, canceling, or failing to renew under AS 45.50.810 (c)(4) shall compensate the dealer for the fair market value of the business, including good will. Valuation other than good will shall include the fair market value of the dealer's inventory supplies, equipment, and furnishings purchased from the refiner or distributor exclusive of personalized materials that do not have a value to the refiner or distributor and inventory supplies, equipment, and furnishings not reasonably required in the conduct of the business. Compensation shall be made within 60 days from the date of termination unless it is necessary that a lawsuit be filed under AS 45.50.830 . The refiner or distributor may offset against accounts owed by the dealer under this section any amount owed by the dealer to the refiner or distributor.