Harmonic damper fitment issues la360

I've searched for forms regarding this here and dint find anything that really fit the bill, 1974 LA 360, fresh build, new aluminum timing cover from dorman and new harmonic damper will refer to as "HD" for the sake of my fingers, from dorman as well and tried one from graywerks both are almost exactlythe same, both say external balance and both say they fit a 70+ 360, went to install and before the damper bottoms out i am up against the timing marks on the cover, I've seen some say that depending on brand of HD the cover has to be ground and welded, due to tool access that's not really an option for me, is there something that I am missing? I've been mulling it over for about 6 hours and can't come to any new conclusion, her are some photos of the half installed damper and of the damper. The last 2 screenshot are of another style damper I saw and thought I could try, I just feel the counter weight may contact the timing cover cone where the seal is pressed in, any and all info helps and pictures of your setups are greatly appreciated

20250715_002030.jpg

20250714_235908.jpg

Screenshot_20250715_002430.jpg

20250713_042905.jpg

20250713_042858.jpg

Screenshot_20250715_002140.jpg

Screenshot_20250715_002130.jpg