Installing aftermarket chassis stiffeners in early A body

I am going to install a Magnumforce A-body front end stiffening kit:

http://www.magnumforce.com/magnumstore/shop/item.aspx?itemid=21

and an Auto Body Specialties A-body torque box kit:

https://www.autobodyspecialt.com/cgi-bin/commerce.cgi?preadd=action&key=MP-AR2829

in my '62 Valiant V8. These parts are advertised as fitting only later years of A bodies, so I intend to modify them to fit the early body. Is anybody interested in this? Thanks for reading.