what are some ways to maximise your sale price?

I think that the more information you can give about a product, the more likely you are to be able to get people to bid more money for it. If you don't want to pay for more photos, then you can embed them into the listing easily and a quick internet search would tell you how to do this. Make sure you tell people why you're getting rid of it, as a lot of people will automatically think that there is something wrong with it if it is second hand and the owner is choosing to sell it. The better the listing, the more likely it is to sell.