Jan,
Our beloved Wollie was dx with intestinal cancer, we had him go through the surgery and to tell you the truth we would not do it again he was never the same. We loved him so much that we could not bear the thought of our lives without him and in the long run ended up causing him undue pain. Three months post op we had to put him to sleep. The hardest thing in this world is to do what's best for you dear friend I don't think I would put him through chemo if they don't expect a full recovery. Ask the vet to give you the names and numbers of other people that have gone through the treatment that they are recomending and get their input. Remember that Brodie expects you to do what's best for him not for you.
We feel your pain
Tim & Kathy