Wit's End on Shyvana?

So I've been playing Shyv jungle a lot recently, and I've decided to go Chilling Smite w/ Devourer, Tiamat (upgraded to Hydra later), Boots (situational Tabis or Merc Treads), and then tanks items.

But of course there's BotRK which is amazing on Shyvana since it not only gives as which gives more Q but also gives the active which makes ganking a little easier. However personally I liked going the Hydra route since it gave more damage overall and increased clear a decent amount with Hydra passive and active, plus AoE lifesteal instead of single target.

The problem there is if I were to go both Hydra and BotRK that means even if just getting Tiamat you're putting over 5k into offensive items before wards, boots, and defensive items, plus the almost 2k on devourer. SO that means 9k (wards and boots around 1k each, give or take per boots, amount of wards, etc.) gold before you start getting tanky. Which is a HUGE problem.

So I was wondering, could I go Wit's End instead of BotRK? The pros being 600 less gold with the addition of some MR and addition magic damage, which Shyvana already does a lot of with her W. And Wit's End gives 10% more as than BotRK. However the cons would be no lifesteal (however I would have Hydra late game and at least a tiamat so there's that bit of regen) and I wouldn't get the active that BotRK gives or its passive.

TL;DR: I currently build hydra but am considering another offense item, Wit's End of BotRK (BotRK technically 'better' but Wit's is slightly cheaper and gives some defensive stats.) Should I get the Wit's end or BotRK, or neither and just stick with Devourer Hydra (don't really want to give up either of those).

Thoughts?