I reload for it and the first thing I'll tell you is for the mouth flare, get the Lyman M die. The bullets are so small and the cases so skinny that you will struggle to get the bullets seated square without the M die and with .32 H&R brass, it's thinner than .327 and I've crumpled cases using the Lee flare die.
With .45 Colt, I've never had any issues with the Lee die set I have; not one crumpled case or bullet seated cocked.
Using the Lyman die you can't use a powder thru die, so you'll have to use a manual powder throw or an automatic powder dispenser. With .327, if you want to load to max, you're better of doing this anyway.
Ruger makes their throats big because they expect all you'll shoot is jacketed bullets cuz of the velocity. If you want an accurate, low power lead bullet load, you'll have to buy a mold that casts bullets out to .314 or larger. Factory lead bullets are .311-.312 and undersized bullets mean you can get leading that you don't want.
I don't cast, so I've been thinking about buying factory bullets at .312, melting the lube off, and powder coating them to increase the diameter.
Because Lee doesn't make a 4 die set and you really need the Lyman die to get the best results, I would skip buying the Lee set and get the Lyman. Do buy the Lee factory crimp die though.