The L.L.Bean "Gore-Tex Bomber Waders" come in sizes XXL, XXL-Tall, and XXL-King, which is made for up to a 59" chest, 31"-34" inseam, and size 12-14 shoes... I've seen you, (you're in the Renton PSA, right?) I think these would probably fit you.

Here's L.L.Bean's guarantee:
"Our products are guaranteed to give 100% satisfaction in every way. Return anything purchased from us at any time if it proves otherwise. We will replace it, refund your purchase price or credit your credit card. We do not want you to have anything from L.L.Bean that is not completely satisfactory."

I you feel the need to buy local, I'd support Salmon Bay Tackle, too... they are nice guys there.

-N.