[Inquisitor Rosenadel]

My friend is attempting to create a Sister of Battle army for next year's Adepticon tournament. If anyone reviewing this has never been to Adepticon, here's how the tournament armies work: there are four member to a team. Each member has a 1000 point army. The restrictions for the army are as follows:
1 HQ
2-3 Troops
0-1 Elites
0-1 Fast Attack
0-1 Heavy Support.

In addition, between the team, there is a "floating" Elite, Fast Attack, and Heavy Support choice. This means that one army may have an additional Elites, Fast Attack, and/or Heavy Support. Normally these are spread out.

Basically, when any two 1000 point armies are combined, these restrictions ensure that the combined army does not violate the Force Organization Chart.

So, my friend wants to make it all Sisters. I tried making a list so that I could give him advice, but it ended up being closer to 1500 points! So, please help me trim down the list and make suggestions about including/removing certain choices.

That being said, are Sisters Repentia and Seraphim worth it? My friend really likes them (though he has not actually played with anything but Tau yet) and will want to include them both (or at least one). But if either are not worth it, I'll break the news to him. So here's what I have:

Canoness: Storm Bolter, Power Weapon (65)

5 Celestians: Veteran Superior w/ Storm Bolter, Heavy Flamer, Flamer, Imagifier, Immolator, Dozer Blade, Extra Armour (203)

9 Sisters Repentia + Mistress: Priest (250)

10 Battle Sisters: Veteran Superior, 2 Meltaguns, Rhino w/ Smoke, Extra Armour (207)

10 Battle Sisters: Vetern Superior, 2 Flamers, Rhino w/ Smoke, Extra Armour (199)

10 Seraphim: Veteran Superior, 2 dual Inferno Pistols (260)

5 Retributors: Veteran Superior, 4 Heavy Bolters (129)

Exorcist: Extra Armour (145)

Total: 1458

I think the Retributors and Celestians could come out (that would be freeing up the extra Heavy Support choice, too), and the Canoness could go with one of the Battle Sister Squads (removing one sister so they could still fit in the Rhino). And as much as it would pain my friend, either the Seraphim or the Repentia, too. Which might leave just enough room for a lightly-armed Inquisitor and 3 warriors with Heavy Bolters to make up for the Retributors... I'll post a modified list after a few responses.