Strut question for 74 super

[woolbags]

Hi guy's I am new to this site and just about to start my new project and had a few questions about strut choices for my 74 super .
I am looking at toplines maxx and maxx xtreme struts and wanted to know if anybody has experience with the xtreme version they offer . I talked with them about this choice over the regular maxx struts and they recommended using kyb gr2 inserts which will give a nice firm ride and work well with this strut , the big drawback as I understand is the spring rate is a little stiffer then the regular maxx strut { 80 lbs. as opposed to 65 lbs } and the adjuster set up can collect road grime and make it a little tough for adjustment after time. This car will not be a daily driver and probably will not see much if any bad weather .
Any other affordable recommendations would be considered
Thanks