10 bolt front

[1979C20]

I have a 10 bolt front axle that I got off craigslist. The driver side was converted to 8 lug. The passenger side is missing everything but the knuckle. I've done research and have found that my calipers and brakelines will work on the 10 bolt 8 lug rotors. 1/2 ton spindles work with the 3/4 ton rotors. I have a friend with the parts I need, all but the caliper backing/mounting plate. What I'm trying to figure out is, can I use my caliper plate from my 2wd suspension and drill some holes in it for the 10 bolt?