Need big block help.

Your budget is what will determine how well matched the components you use will be.
The more you optimize parts to complement each other the more it will cost. (more parts)
I know when I built my first big block dart the information available was limited to
the old Mopar bulletins that didn't help a bunch. Numbers of parts that wernt available.
Things have changed a lot. You now have companies supplying parts that weren't available then.
If your budget is thin like mine was when I built my first 440 dart. You can optimize
later as you have the money. It was enough for me at the time working my first job at minimum wage (2.65 hr) to just get the car together and stay together. This was my daily then.
I found out right away how much more important it was to have a strong rear axel and driveshaft vs a high lift cam. Disc brakes were more important than aluminum hi rise intake. A larger radiator was needed more than mag wheels. A 110 mig welder was the best money I spent on my 440 dart.
These are the kind of lessons I learned on my first car. This may be outdated info to some
extent today but I believe it is the manditory foundation to build up from for a guy just starting out.
Is the motor home engine optimal as is? No. Will it get you down the road ripping the tread
off the tires. Effortlessly.
I do hope your budget allows more than mine did on my first car. If it doesn't it still can be done if you put your money in the most needed areas to get the car moving under the power of your 440.