Wow - I was re-reading this thread 'cause I have the 'Kenmore cousin' version of this washer now, so I thought I might get some service ideas...
About the hose, you might scare one up at a thrift store like Salvation Army or Goodwill (I have found a number of replacements that way) and you can probably substitute a later version. I don't know a great deal about suds saver machines, but I remember the Inglis (Canadian Whirlpool) washer at a friends house had the suds saver feature and the suds return hose seemed to be a regular drain hose with a rigid section about a foot long with a bias-cut end (it looked like it had been cut to use as a spear!). The long-end hooked over the laundry tub and I guess the cut end allowed it to rest on the tub without blocking the the hose opening.
I am going to need one of these myself, and if I can find anything that might work for you, I'll pick it up!
I think making a substitute one may be the way to go....
Last thought - if you have a used-appliance dealer (or dealers) nearby, check with them. They sometimes keep spare parts that have now gone out of current use..
First one to get their suds-saver hooked up and running wins! LOL