I have to agree with Chryco Psycho. The Alterktion is definitely the best around right now for the street application. I have been looking into several options for some time for my 68 charger. I have looked at the Magnum Force k frame, Alterktion, and some other customer made options. I have talked to Bill at Alterktion many times, and he made me feel very comfortable about what his frame is capable of doing and what it wont. I have also confirmed what he told me with customer fabricators local to me that have worked on both his frame and Magnums frame. What I have learned, is if you want something to put on a car that is mainly made for racing, Magnum force is the way to go, but if you are looking for durability/strength that can take the beating of driving on the street, AlterKtion is the best way to go. Several of the shops here have taken in cars that had the magnum force k frame that needed to have serious fabrication work done to add strength, because the frame would bend or break after allot of street driving.
Unfortunately, Alterktion doesn't have a frame available that will fit a B body with a HEMI and aftermarket oil pump(Milodon). Motor mount issues are the problem. Bill is still trying to solve this problem. So for now I will stay with the stock k member and steering assembly.
The cost for the package, once you take care of breaks, lines, etc. you will be pushing $4,500 +... But talk to Bill if your interested for price clarification for your application.
Hope this is of some help,