That's cool, I drove halfway across the country for this (Classic?) F350 Diesel Dually, so I understand.

When I rebuilt the 390 in my '76 F-250 (2x4) a few years ago, I used a Howard's Dual Pattern Cam, P/N 252461-12.  That motor had very similar specs to your 428, about 9.5:1 compression, 0.030" overbore, factory iron heads and 4 bbl intake with 600 cfm Holley, and long tube headers.  That motor pulls real hard to 5000 rpm, has a decent, but slightly lopey idle and knocks down a consistent 13 to 15 mpg.  I would think with the extra cubes in the 428, you might want to step up to a bit bigger cam, but the Howard's cam I chose looks to be very similar to the solid Crane CJShaker described above.  Just remember that cam opinions are like belly buttons, everyone has one and some are ugly.

Manufacturer: Howards Cams & Racing Components
Manufacturer's Part Number: 252461-12
Application: Ford FE 352-428 1963-77
Ignition Firing Order: (1-5-4-2-6-3-7-8)
Cam Style: Hydraulic Flat Tappet Camshaft
Basic RPM Range: 1600-5400
Manufacturers Description: Street Force™ 2, good idle & throttle response, needs 4 barrel & good exhaust.
Intake Duration @ .050": 215
Exhaust Duration @ .050": 225
Advertised Intake Duration (@ .050"): 269
Advertised Exhaust Duration (@ .050"): 279
Intake Valve Lift with OE Rocker Ratio (1.75): .519”
Exhaust Valve Lift with OE Rocker Ratio (1.75): .543"
Intake Lobe Lift: .296"
Exhaust Lobe Lift: .310”
Intake Valve Lift with 1.70 Rocker Ratio: .504"
Intake Valve Lift with 1.80 Rocker Ratio: .534”
Exhaust Valve Lift with 1.70 Rocker Ratio: .527"
Exhaust Valve Lift with 1.80 Rocker Ratio: .558”
Lobe Separation Angle: 112 Degrees
Intake Centerline: 108 Degrees
Small Base Circle: No
Lifters Included: No
Cam Gear Attachment: Single-Bolt
Valve Adjustment: Zero Lash Plus ½ Turn

I have never used a GearVendors, the cost seemed prohibitive.  A new one will run you $3K to 3.5K depending on application, and you will likely be into it for over $4K after installation (new driveshaft, floor mods, etc.)

I put a Broader built AOD behind the 352 in my '62 Merc Monterey.  Adapted the Cruis-O bellhousing to the AOD case.  All in cost of about $2.5K, and it works wonderfully. 

https://www.broaderperformance.com/

If you have a 3 or 4 speed manual, take a look at an Advance Adaptors Road Ranger Gear Splitter.  I have one installed between the 6.9 IDI and T-19 4 Speed in my '85 F-350.  This is also a wonderful product (a bit noisy in high range), that works really well even with the 4.56:1 rear axle ratio.  They work with just about any Ford 3 or 4 speed manual.  All in Cost of about $2.8K, and I paid someone to do all the work, which included floor mods, new carpet, new clutch, and a shortened driveshaft.  Much cheaper if you do it yourself,

https://www.advanceadapters.com/categories/complete-units/91/

76 and 77 model years were virtually identical.  The crossmembers should be the same.  My '76 F-250 has a 390 in it.  Great motor for that truck.

I will add another recommendation for the Rotella 15w40 Diesel Oil too.  Great product for the money. 

Interesting that the '65 427 Cobra was the quickest from 0-60 until the Porsche 959 came along some 22 years later.

Not to put words in Brent's mouth, but what I think he is driving at is that it would be rather odd that some machinist would cut one of the mains at -0.020" and the others at -0.030".  You would then have to buy multiple sets of bearings and play the mix and match game.  So, are you sure you measured accurately?  Also, what were the rest of the journals cut at?  Do the bearing shells have their size marketed on them?  If so, do they match your measurements?