Selling a 300D

[SumDude]

I am currently selling a 1977 300D. I have a few questions and would like to know if anyone here is interested in it before I unleash it to the ebay/craigslist world. This car was purchased by my grandparents new off the lot and I became the owner when I got my license. It has had a few changes as I will list: The vaccuum locks where replaced with electronic locks and a remote alarm although the siren stopped working so I removed it. I am half way done putting in bmw power seats in it but i will have the stock seats in at time of sale. The bmw seats could be thrown in if wanted. It has a trailer hitch with wiring that has served me well. It has euro style headlights off of ebay. I like the lights but they do not line up 100% (thank you ebay) but they have silverstar bulbs in both high/low and fogs. The grill is painted black with new crome pieces and I have the first two high-milage awards. The current milage is 346,000. I has a new alternator and radiator at around 343,000 miles. My question is what do u think a car like is worth in its current condition.