blank for 5-8x23x3 mini simmons

I just shaped a 5-0 mini simmons for my sons.  I used a 6-8 RP blank and it came out alright.  I’m now looking to shape a 5’8"x23x3 mini simmons.  I don’t want to use the 6-8RP blank since it starts out 3" thick.  I’m thinking about the 6-5A or 7-3 A blanks.  I’m leaning towards the 7-3A since it has the width and thickness I need and since I will cut off over 1 1/2 feet the rocker shouldn’t be much of a problem.  Has anyone shaped a mini simmons from the 7-3A or what have you used to get a finished thickness of 3"?  Thanks

Millennium 6’5f -1"nose -1" tail

Or a millennium 6’3"S with similar adjustments