The Redhawk in 44 or 45, especially in the 5.5 inch, is a great gun.

Wolff makes trigger springs a novice can change out, you can get Ruger or custom rear and front sights to suit your needs and the very best feature is custom cast bulleted loads that can use long seating and increase powder capacity/reduce pressure.

In a 45 Colt, the Redhawk can become a virtual 454 Casull if going for very heavy bullets.

Bullseye, 231, Unique and other powders can garner loads like a 44 Special. In that size of gun its like shooting 38 Specials from a Smith 19....

I don't know what you would really need Bowen to do, unless you want a totally different caliber or power level; a trigger job, yes.

IMO, the quasi-stock Redhawk is GTG if staying with a 44.

Reloading and some custom moulds or Redhawk only custom loads will be cheaper and be more fruitful.