trailing arms to leaf springs

[buddylee]

ok i am a newb so bear with me. thanks for all the answers so far.
ihave a 68 c20 lwb that i want to swap to 1/2 ton. eventually swb

heres my questions
i found a complete 87 1/2 ton
i know the front will bolt in.
will the leafs from the 87 work on my 68 providing i take the brackets off and remove my trailing arms?
also i found a local guy selling the brackets and springs from a 69 c10 .
would that be easier since they are alsready off and no grinding of rivets?
i want to lower my truck all around. doesnt have to drag rocker but just a nice stance.