If you ever get down to the Terrace area I would recommend Lakelse Machine and High-Performance. Talk to Ryan at 250 638-6230. Tell him that Dave R sent you.
He sponsors my race car
At work last year we had him rebuild a 428 CJ for us and it worked great. He put in a mild cam but otherwise it was stock.
Maybe you could get someone from White Bear to drag the engine down for you. Their Terrace shop is right across the street from Lakelse Machine. Actually the 428 was for one of the Gordon Hull who owns or part owns White Bear.

I haven't heard much about them lately but lots of people used to get engines rebuilt at Jim's Engines in PG.
JIM'S ENGINES LTD
595 Ongman Road, Prince George, BC V2K4L1
(250) 563-3320