Adding Boss Frames, how difficult is it?

[Dessembrae]

As the title says.

How difficult is it to add bossframes to a 'messy' layout code.
It's still the same one as the one with the raid icons issue (which was my own stupid mistake)

http://www.wowinterface.com/downloads/info18846 or for ease http://www.pastie.org/1713020

I know, I know

Already a few told me to take a clean coded layout and transfer all the functions and looks, but I rather keep this as long as it works (lazy, lack of time and knowledge and all the other regular excuses, at least I admit it ).

Thing is I can look at other layouts (I often do to get a general idea of how something works), but this one is a bit of a special case, since it still declares it's local units in a list (and as far as I can see nearly all layouts don't do that anymore, and those that do don't have what I was looking for regardin boss frames). All the present units in the layout have only single frames. Tankframes have unit 1 and 2, Bossframes have unit 1 trough 4 (not talking about arena frames which have 1 trough 5 plus their targets too).

If I want to keep using this layout, would I have to declare ouF_Boss[1] trough oUF_Boss[4] separately or will oUF_Boss[i] do the trick? (which I don't expect since it's a variable) And would this also work for tanks, arena frames etc. I'm talking about this list of local units.

local units = {
	[1] = "oUF_Player",
	[2] = "oUF_Target",
	[3] = "oUF_Focus",
	[4] = "oUF_TargetTarget",
	[5] = "oUF_Pet",
	[6] = "oUF_PetTarget",
}

Another question I have is the last part I added to get rid of blizzard raidframes (since I use grid for that). It was working for quite a time, but currently the outside frame (let's say the placeholder frame) is back in display even with this at the end of the layout.
The frames that show up are:
CompactRaidFrameManager and CompactRaidFrameManagerContainerResizeFrame. There's no content inside, just the outline frames.

oUF:DisableBlizzard('party')
CompactRaidFrameManager:UnregisterAllEvents()
CompactRaidFrameManager:Hide()
CompactRaidFrameContainer:UnregisterAllEvents()
CompactRaidFrameContainer:Hide()

Is there a line missing in this part, or is something else wrong?
For now I've hidden them with FluidFrames (a addon I use anyways), but I thought the above code would've been sufficient enough.

Thanks for your time.
Regards, Dessembrae.