John,
According to the distance study by Gene Parente, here are some figures to help you out:
Swing Speed Carry Carry % Total
55 74 63% 116
65 120 78% 154
75 148 82% 181
85 186 88% 210
95 218 91% 239
105 247 90% 274
115 273 91% 300
125 294 95% 310
I think "most players" (i.e., average male) would be in the 85-95MPH swing speed carry, although that is fading fast according to many stats. The nominal carry would be affected by wind, altitude, etc. Not to mention tee design. After figuring out what tees everyone might play at that course, you might want to consider whether to create a carry for the lowest average swing speed in that group, average or high swing speed, or with an elongated tee, provide an option, although you can never count on the tee placement guy to understand what you are thinking.
As you can see, generally, slower swing speeds produce shots with less carry and more roll, both because of spin, lack of height, and downward trajectory. I think that the frontal bunker would have to be several yards short of the green to really make that shot work as I think you intend and/or, provide a really deep green. The hole you describe is actually just pretty bad design, i.e., not workable for the players playing it.
As a few note, you probably have to ignore the USGA par guidelines. In truth, senior male golfers have had shorter than regulation holes for years. With the forward tee movement, many holes for the shortest tees really should be comfortable ignoring the USGA distance/par guidelines to get what you want design wise.