Agreed. The BA10 adapter will prevent a 'blow out' or leak at the reservoir.
It can be done with the universal cover....but be careful to fit it well and don't apply too much pressure (keep at 10 lbs or so).
With the BA10 you can get a very snug fit and apply 15 lbs or a bit more.
I can't help it. I'm a 'visual' learner with a strong Neanderthal heritage I think. Concepts alone often allude me, so I have to SEE it...even when just explaining something. It's more for my own benefit than the readership here. :)
The 100 series pad is mostly just taller. In fact... it overhangs the outside edge of the rotor slightly. The amount of extra surface area is insignificant. The one advantage it has however is that they last longer for most folks (they are thicker). In my case (owning both an 80 series and 100...
Bleeding the system can be a chore at times. Successfully bleeding the ABS system and LSPV whether doing it yourself or a shop does it.
No oversize pads for rear. The fronts you show are for a 100 series and they will fit your 80 series (leave out the anti squeal shims). The are larger but only...