Just my two cents but I've had many hemi cars over the years and have maybe learned a thing or two.
First thing is what do you really want out of this car? Do you want a "stock" hemi car. Next would be "why"? Here's where I'm going with this.
I have had two automatic hemi b-bodies (67 Charger, 68 Charger R/T) 3:23 gears, stock motors. I hate to break the bubble but they are pretty much dogs in this combination. They are nice to drive and easy, blah, blah, blah but when you stomp on the loud pedal all they do is make noise. You are not accelerating very hard. Hemi's have huge port volumes, large plenum volume and it takes a lot of RPM's to make things happen. Is this what you want? If you are interested in driving it calmly around town or going to a show to win a trophy fine.. by all means do it. If you are somewhat juvenile, yes that includes me, you may not be happy with this set up.
This then leads to other questions. Would you be happier with a "stock" motor but with more gear in the rear. 3"91 or 4"10's would make a huge difference in performance.
Originally this car had solid lifters. Does it still? Is this what you want to keep if it does? Do you want it have hydraulic lifters? Each style of camshaft requires a unique set of push rods. Are you able/willing to measure the lengths that you will need if you are making a change. From my experience, buying the Mopar Performance pushrods is not very effective. It is best to measure your actual engine and determine what exact lengths you need for intakes and exhausts. This will play into what is available to you and what will work best with gearing etc..My two cents. why would you want hydraulics if you can run solids. Solids rev so much more freely and they do not require constant maintenance. Unless you run high spring pressures and run it hard you do not need to be constantly taking the valve covers off and setting valves.
Someone above had asked about the pistons and compression. Knowing this is critical to making the engine respond in the manner you will want. You need to know this information in order to ascertain the correct camshaft profile. For your info 150 psi cylinder pressure is a little low IMO. Most of my hemi's in stock configuration have been in the 185 +_ 5psi. Did you measure all cylinders? Did you have the throttle bores open when you did this? You're compression may be o.k. but if you have a larger cam with a lot of duration you could be effectively lowering your compression ratio some.
In the end this is your car. Do as you please. But take the time to go through this in a methodical manner and don't take short cuts. If you don't know how to ascertain some information, ask. Lots of people will want to help.
Take this for what it's worth but if you ever want to p.m. me feel free. I'd be happy to talk to you about this if you want.