If you PM me your email address I can send you the Fink plans from "Be Ironfit" on an excel spreadsheet. The intermediate averages about 11 hours a week but has a few peak weeks nearer the race of c.15 hours?
It's all done on heart rate zones (based on your max HR) and time length of run or ride, so nothing about speed ever. You just go at the right heart zone for the length of time indicated.
I's a 30 week plan. You will also see the "just get round" and competitive" programs as well as a comparison.
If you like the structure of the program, get the book, it will give you the swim reps and a whole lot more besides.
"Going Long" by Joe Friel and Gordon Byrn is very well worth a read as well. There are a couple of sample programs in there, but its more about giving you the info to build your own program.
Or there is the Pirate training program of "swim a little, run a little, ride a lot"!