I see your problem and I see what you're trying to do.
I don't know the answer because I have used only Bil's on all of my trucks. I'm very happy with them.
I might make a suggestion if I were you.
You can buy the Bil's and then take the struts off of the truck (80% of the work) and then take the strut assembly to a shop and have them change out the insert and then you can bring them home and put the assembly back on the truck.
It should not cost too much to have a shop put the inserts in.
Might be worth a try if you don't want to try other makes?