Give Tobin at Kore3,
http://www.kore3.com/contact_info.php , a call or an email. He is a brake genius. They have Vette kits with and without parking brakes for both GM rears and Ford rears using big Torino ends, which you have. I plan on using Ford ends on my 10 bolt for my '70 Camaro, and they have the brackets for mounting them up for 2nd Gens using leaf springs. When you pick a brake package, it has some options at the pull down menus, and one of them is for staggered shocks, which includes 2 LH calipers.
Good luck.