I'm in a similar situation with my 110. I've got three main targets: 1) some additional lighting, 2) a snorkel and 3) decent rock sliders/side steps. You've already got 3) by the looks of things - can anyone tell who sells this type, they're exactly the ones I want!
1) I'm only looking at a pair of extra spots since I can't see the need to challenge Blackpool and am unlikely to need any more. I was actually quite surprised by the standard lighting (I'd expected it to be awful and it's merely poor) but I do like to be able to see clearly.
2) Unfortunately I do have a demon that whispers in my ear when I see water and have previous form for plunging in where perhaps I shouldn't so if nothing else a snorkel would be a good precaution. However, as you say, this might only make things worse...