It might well be. There are only two disadvantages to the Square Deal B press I can think of:
1) The dies will not fit any other press than the SDB
2) The press will not do long cartridges (rifle cartridges)
On the other hand, if you can afford to put together everything you need, you are not likely to want to upgrade to another press (thus obviating the die transfer difficulty) and you will have no other handicaps.
I am not comfortable with progressives because monitoring simultaneous operations drove me crazy. But that is not a problem with progressives, that is a problem with me.
It sounds like you are good to go. Congratulations.