Agree the AHM C-liners's have a good windshield and are generally well proportioned, albeit the cast-on details are thick as mud. They are what they are. As posted the carbody faux-pas can be removed and replaced. Getting rid of the cast-on handrails and replacing them with wire grabs is an instant improvement, ditto drill-milling out the the rood fans and replacing with brass screen and strip ribs. Highly impressed with Central Fan's excellent printed grill work here. Great idea!
You can do worse then doll up a set of these up shells with the CLW drives. We have a pair so-equipped on the club that have been running forever.
I'm actually fascinated with the re-finishing options myself as neither of the two factory schemes is correct, and AHM never delivered on the long promised/catalogued NH McGinnis version (sigh.)
The CFA prototypes look great- Brunswick Green PRR with antennas, Orange & Maroon Milwaukee Rd, NYC, CP and CN
The five axle CPA's can be rendered with the CLW drive if you shorten the tank skirt and upgrade the rear truck to a PA style A1A , not exact but close enough for me, and who can argue any of the NYC, NH or Long Island schemes. I have a lasting urge to build one of those LI CPA-24-5's in that Orange & Grey "Dashing Dan" version, monster powerful engines in their day.