i made my spacer it is about 2'' 5/8 inside and about 4''.1/4 outside and if you dont have strut spacers dont go over 1.125'' of thick because the struts are all extended at 1.5'' (i try it).
and if you want to make spacer for the strut mount it si 4'' inside But dont foget that the strut bar fit on top of it ,will need spacers too .
What it look the best is strut spacer ( i mean a bolt on top of the strut ) but i am affraid about the reliabilities of if .
nothing simple on those modeles
hope it can help
Marc