I think it is worth a try. It too loose, I could shim with some thin cardboard or toothpicks.
Should I just order some directly off your web page or do you want me to link the order to this correspondence somehow?
That sounds like a good idea! We've done something similar with other corners with good results.
You can order this part directly from our site, yes. If you use the same email when placing your order as you used when creating this discussion, we will see that they are related automatically.