Would also have to echo Years of War. Mained a wizard, geared a DH - I levelled 3x lvl 60 gems for use on the DH (which means a minimum of 45 rifts, but probably closer to 50-60) and by the end of it, I had full UE set with 3x ancients, proper belt (had a witching hour laying around), decent bracers, a deadman's legacy etc... Then it was just a case of rolling a few bows to a yangs and I had a DH that could farm T10 to finish the other set(s) to get another 1-2 55's done. I probably spent about 17-20K blood shards in total by the time I had finished both marauder and UE sets, which aren't a ton when I get up to 5K per hour.
Just keep using your main to farm shards and roll gear untill it can comfortably start T10 - there's no point trying to gear a second char up through the tiers, will take you WAY longer. I ended up doing Years of war with firebirds, tal rasha, Delsere's MO on wizard, and Shadow's, Marauder and UE on my DH (shadows kinda sucked though, would not recommend :s).