You could look into ball joint replacements like MOOG and if those exist, then plan for that when the time comes. If it's not broken, don't fix it!
I'd replace the bushings if that was my project. Leave the arms and ball joints alone IMHO.
Making yourself replace arms and then planning for replacing ball joints and then hoping for adjust ability and then... it's all a slippery slope that is holding you back from doing what you wanted originally.
Welcome to NICO Club and have fun stiffening up your ride!