I just pulled the trigger. Brooks B17 saddle, $45 with code w227! Also bought the trekking bars and bar tape, some tubes, a new chain (two in one, the recumbent/tandem chain is $1.50 more and has 232 links instead of 131 links for $6.50). Had to work hard not to spend a lot more! I did spend $4 on the saddle wrench, but I hope to not have to use it.