Your game plan sounds similar to mine. I typically apply for 3D first as I hunt the promised land area during rifle. Then during the first bonus round I typically apply for 4C as that is where I do all of my bowhunting a bit of rifle as well. Now here is the deciding factor, 4C reduced its doe license allocations by about 12% if memory serves me. 3Ds reduction was more significant so it may be wise to apply for 3D first and then 4C second.
On a related note, we rent one of those Promised Land cabins on Bear Wallow road for the first day of trout each year. Great time! But make sure to dial 1-888- PAParks and not 1-800 unless you like to hear about certain adult services.