Hi Nicole,
I live in western Washington and my pears all got that fungal brownness this year too. My impression is that young trees are more susceptible, and that they usually come back much healthier after the following winter, and even better the winter after that. That's my hope.
If it were me (depending on space, money, and
energy constraints) I would try growing a seedling (or a few) and see how they turn out. I'd be prepared to top work them if it turns out the fruit is nasty, but that's not hard from what I hear. But I would also plant a few more grafted trees, because they'll produce much sooner. Also I've heard that pome fruits (apples, quince, pear) are much more variable when grown from seed than stone fruits, so your seedling is likely to not give good fruit, though it's worth a shot. Also the seedling will be a standard, and standard pears can get huge if not kept pruned back (I've heard of specimens that are seventy feet tall in western Washington, though I don't know if that is true or not). Orcas will need a pollinizer I'm pretty sure, if you don't have one already. I believe Comice is a good one for it and Comice pears are reputed to be among the very best tasting (they have a gene that makes them have few or no grit cells in the fruit).
Blake's Pride and Ubileen are supposed to both be very disease resistant. I got both (in addition to several others) from Burnt Ridge this year, but all my pears except moonglow and Nijisseiki got rust/scab pretty bad.
You might also try growing quince if you don't have any yet. They had a little bit of scab/rust but recovered really well. We live in good quince country for the most part, and unlike pears, they tend to bloom very late and avoid our spring rains that wash the pollen out of a lot of pears.