Im not sure if there are any kits that dont require you to weld on your spring perch.
I think someone sells a non weld on spring perch, but im not 100% about that. I cant remember where i saw it, but they were a bolt on style. Not sure how strong it is.
If it were me i would go for the weld on ones.
How come you dont want to weld anything?
I think most of the vendors selling spoa kits sell them with EZ weld spring perchs. Its a no brain thing, you set them on, line them up and weld them.
If you dont have a welder you can take it to tons of differnt shops and they would do it for pretty cheap.
Amilla
Amilla