Now have the codex, not entirely sure how good this is, or isn't, as a list but have when they are all built a list that runs to 1,929 points...
Only a Battalion detachment and pretty much designed to fight close together so good at some things, utterly terrible at holding ground or capturing a range of spaced objectives - could do well in Apoc games though with roughly 1,000 points of something to hold an objective. (or 500 and bring a second land raider along for yuks, there being a stratagem that allows a pair of them to work together to ignore to hit modifiers), or let someone else babysit at home and also bring a bunch of silent sisters
Valoris (re-roll to hit & to wound of 1 within 6")
Shield Captain (re-roll to hit of 1 within 6")
4x3 Custodes (one with storm shield & blade, two with spears
2x Vexilus (one giving a -1 to hit against targets within 6" for shooting, no min range, the other +1 Attack to units with 6")
1x dreadnought, S7 assault cannon & close combat weapon
1x landraider, usual load out
Needless to say its not all built yet, but will be interesting to run an army that makes James's Deathwatch look like a lot of models, 18 models and not far shy of 2,000 points
Also small enough actually getting them built this side of they year 40,000 is possible