Just wanted to post that Al Debevec 715-267-7141 does a great job with K-frame mods and hemi k frame conversions.

Easy to work with, super quality and extremely knowledgeable. Knows the difference between a B and E body frame and brackets

Had this 70 V-8 K frame modified with brackets and insulators. Really impressed with the work, did a minor repair to a tear, and ensured the LCA pin sleeve that had a broken tack weld was reinstalled and welded properly.
If your doing a conversion, and have the K frame, I think this is a better option then the poly conversion brackets that have gotten pretty expensive.