Marcopolo

I'm interested in doing my front lower control arms on my 93 SC400. I intend buying 96 SC400 bushes (48654-24040 - $30.69/ 48655-24050 - $39.23) from irontoad.com and installing myself. (I'd get the wheels aligned by a specialist) 3 questions if you don't mind: are these going to fit? is it realistic of me to fit them myself? you did it yourself and took total 6 hours, right?