what dacs are fast, lively, energetic?

Do you have speakers that can keep up? 

I went from my exasound to my weiss, and I don't think it got any "speedier". 

My Magneplanar's definitely deliver a fast sound, no overhang in the bass department. 

Since you are in Canada look up exaSound. 

I never thought I would suggest looking at Topping, but here is a good review of the new Topping d90 III discrete - , discrete meaning it is not like their other DAC’s, it is not a R2R it is a single bit DAC.

Sandu, great reviewer, talks about exactly what the OP is asking for: speed and energy (jump to just after 8:00)

D90 III discrete

Could tide you over until you save up for your 5k budget (?)