buy eof [Cat Burglar's Grips] or [Gatecrasher's Gauntlets] they are better for arp build, eof cloak [Recovered Scarlet Onslaught Cape] , change sigil to [Sigil of Awareness] you can even buy belt [Vengeful Noose] because it bring you arp for ur frost arp build with only this items changed u will have 157 more arp + more dmg from sigil and everythig else is in your rotation, and take this talents u have dps loss in yours one,
https://wotlkdb.com/?talent#jzZG0jxNMczf0cuzAofM0hxc
p.s. if u gave blacksmiting at least place that gem sockets on bracer and hands and grind for bis gears