Hi Jowel and that is a nice scope.
Firstly the finderscope. I believe that this comes with a right angle finder. This gives a correct view and has the added advantage that it is easier to use in terms of head position than a straight through finder. The straight through finder on the other hand gives a reversed view, but that has the advantage that it matches the view in the main scope. I have used both and find either way works once you get used to it. I have stuck with the RA finder simply because it is more comfortable to use.
The eyepieces that come with the scope are OK. I found the 10mm in the 8" I used to use was right at the limit of useability simply because it has a small exit pupil. I had a 6mm also and simply coudn't use it. The 25mm gives pretty good low power views. You will probably want to look at better EPs. Best advice is hold off antil you know where your interests truly lie. If planetary go get a premium high power EP if DSOs, IMHO you cannot go past a 24mm Panoptic and 13mm Nagler.
Can't offer advice on shrouds, though I am sure your retailer will be able to help.
Laser collimators help but really only for the last stage of collimation. A cheshire is a useful al round collimation tool but takes a little practice. I installed Bobs Knobs (complete set, primary, secondary and springs and makes collimation soooo much easier
Yes I got myself a moon filter for the rare occasions I feel like burning my retina. Even with it my dark adaption is wrecked, so I only use it on the moon whenever there is nothing else to look at.On the other hand i used a few times on Jupiter thios apparition when Jupiter was really bright and it helps to tone things down a bring out some features.