I would suggest putting the rig up for a fair price which includes the filters in the sale. Likely someone will be very excited to purchase the rig with those filters.
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If someone wanted to buy the rig and wasn't interested in the filters then you could sell it to them at a reduced price and remove the filters to sell separately.
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If I didn't already have an 817 and hadn't modded with the SotaBeams chip I would jump at the chance to buy your rig with the filters installed.
K6AEF