Smaller Oven Dilemma and cooking multiple loafs

Hi All, I am currently successfully cooking a single loaf in my smallish oven.  I have a small granite baking stone and heat my oven to 250C for 1 hour before cooking the loaf.  The process I use is to cook the loaf at 250C for 10 mins then turn down to 220C for 20 min, down again to 200C for 20 mins and finally 10 mins at 190C.  I have now used this process for my last few loaves and have found that it produces a very nice sourdough loaf.

So here is my dilemma, I would like to make more than 1 loaf at the same time, but not sure how to cook them as I can't fit 2 loaves in my oven at the same time and also want to minimise the amount of time I have to re-heat the oven back to 250C before putting in the next loaf.

Could you offer me some advice on the best way to cook the loaves without having to re-heat the oven between each loaf cooking.

Thanks

Richard