Yes but why make a DD then? Why not make it a katar sin and get away from the dual wielding aspd pentaly (ok not really a problem on highrates.. but meh)? Also with katars you can take advantage of sonic blow and grimthooth, something you can't with daggers.
I see the point in the build, I just think it's more usefull with katars than daggers as you're going to crit like all hell with this build anyway, which means to point of the DD is gone (as the point is doubble hit + off hand hit = more damage that crit hits), and if you're actually using daggers and not swords (which seems to be quite poplar among some servers) you have to deal with the whole "dmg penatly against medium and large", which takes a few weapon slots to fix.
The only point I see with a DD with this build is it's possible to have a decent amount of weapon slots, but if you're using 2x fortune sword thats also gone... so yhea, give me one good reason to use daggers instead of katars with this build?
As for the gear, well it depends on the server but personally I found this set quite usefull.
Headgear top: evil snake lord
Mid: don't remember some status card anyway.
Lower: Lord Knight card.
Garment: +7 (or +10 if you can safley overup) valkyrie manteau with a raydric card
Armour: (I had a two slot): garm and orc lord
Weapon (four slot katar): bloody knight, garm baby, bapho, soldier skeleton
Boots: Amon Ra
Accessorys: 2x Mejingard
Ofcourse that was a highly customized server, but belive me that worked nicley.. oh and I did mess aroound with a thanathos card on my weapon also, but ofcourse that didn't work well as that card dosn't mix well with crits... but a DD that dosn't crit with a thana card or two will hurt like all hell... and thana + edp + frenzy will pretty much rip anything apart... but ofcourse it depends on how easy those thigns are to get.
But I still say that your build looks more like a katar build that a DD build. (Sadly I can't test it cause my current servers max stats goes to 120

)