Godspeed does not list coilovers for Boxsters and Amazon lists them as No Longer Available.
RaceWorks 400/450 are about $1300 with camber plates.
Since I haven't found coilovers under $3000 I'd be satisfied with, going with $1300 RaceWorks would really free the budget up by about $1500 since top plates are included. RaceWorks used to specialize in 986/987s when they were RennenWerke. Even if they aren't awesome, they would at least allow for height correction for bodywork. If they're fine, so much the better..... I smell GT3 arms in the near future.
By the way, windshield and frame is coming off eventually. Probably a bikini for this upcoming summer.