440 Cam selection help

Fish,
It sounds like you just want a good all round performance engine. Some of your ideas are veeeeeeeeeeeeery sensible: like having your factory lifters re-faced.
I would not use a re-ground factory cam on a tight LSA. The factory cams were ground on wide LSAs. To tighten the LSA [ a veeeeeeeeeeeery good idea, find the 128 rule on the web ], & get more lift requires a loooooot of metal removable resulting in small lobes; longevity will suffer. You will also likely need longer p'rods with a the above cam whether you use stock or roller rockers.
Use the Source heads. Since you are at 10.5:1 CR, I would use the Isky 280 HL Hyd cam #160128. It is a compromise & cams are always a compromise.....
Beware of excessive cam duration with the 440. The 440 has the second highest rod/stroke ratio of all the popular big blocks [ only the 350-400 Chrys is higher ]. This means they do not tolerate too much duration & idle quality/low speed tq will suffer.....

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