OP,
Just seen your question.
If you ever need to replace your microwave consider a whirlpool with crisper. Pre heat the crisper for around 7 to 10 minutes and put your pizza in. The results are as good as my kitchen pizza oven that reaches well over 600deg and my garden beehive. Crispy base, great edges and great top. Hard to tell the difference between "properly cooked" pizza and this.
In my view the oven is worth it for the crisper alone - although you may be able to buy the crisper dish as a spare part and use it in other combination microwaves. I'm not certain what setting you would use - but suspect microwave+grill+thermo grill?