I would stick the best pics you possibly can up. Self hosting is much better if you can. I would suggest disclosing the reserve because otherwise you will get a flood of annoying email asking what it is. State that this is the reserve but you can only end the auction by someone clicking buy it now otherwise you will give everyone else a chance to bid. I'm not really a fan of reserve auctions as I think they rather stop people thinking its real. Better in my view with a valuable item such as this to either just have a buy it now with best offer facility or run the auction but start it on the minimum price you will take for the car. My preferred option would actually be to list the car from £1 with no reserve but I can understand that this would feel a bit risky given the value of the car. The advantage is that it drums up bidders and interest with people vying to grab a bargain. As the price increases they move their own goalposts and start bidding more and more to "win their car". I've used this method succesffully in the past but not with cars in that price bracket I must admit. They have usually been dodgy sheds that mates have been too embarrased to sell for themselves and given them to me to auction on their behalf.