First, I suspect (for once) that this *isn't* trollage.
[If it is, well played, sir: 8/10.]
Second, the fact is that different things work for different people, and not everyone responds well to mileage.
Third, I suspect that the OP is not in the American high school/college athletic system--correct?
Fourth, I'm not in a position to give a plan--maybe someone with more knowledge/confidence will oblige--but I will say that almost no one benefits optimally from having an all-slow buildup. Almost everyone, but *particularly* someone with natural speed, should "keep in touch" with his/her speed year-round.
Remember that base training means training what is "basic" for the athlete, not for the event: starting with what comes naturally, and then moving gradually to develop the abilities that your target event calls for.
Along this line, many fairly fast-twitch individuals (those whose "natural" events are 800m or shorter, say) seem to get little or nothing from the weekly long run. I'd suggest that an individual like this should include change-of-pace running (e.g. fartlek) in his/her base training, and even walking breaks (*gasp*), especially early in the base period, on the "endurance" days (which may not include anything longer than 4-5 miles--better to run those at a decent pace, with a few walking breaks thrown in, than to slow to a jog-and-slog shuffle).
Anyway, OP, I hope you can get some specific tips on your buildup. Sounds like you may have the right idea (for you).