2/10 Pretty much everything can be sorted out. I have limited motherboard holes (1 to be exact) and yet mine is way ahead.
You can start by tucking cables into the unused basys ahead. Use zip ties to group cables togethe. The gigabyte p35 s a bit out of date
and the xigmatech very similar to a thermaltake ultra -120 although it does look more rough and ready.
My house has so much dust I clean out my air filters every 2 weeks and still have it coming through the grills backing up. Got to love old houses but hate the cleaning