Crafting 1.5k phys dps talisman for my Wyvern Shaman

Hi there.

So... I'm crafting. For a first time on such scale. There are a lot of divs this league to spare so... why not to try?

Here's where I am atm:
1) Got Jade Talisman lvl 83 with 3 sockets
2) Got max 179% phys dmg
3) Fractured it and hit 179% phys dmg (that made me very happy :))

And what now? I've never had enough currency to play with real crafting so I'm a bit lost. There are not many YT tutorials for 1.5k talismans. One of few is based on slamming greater chaos until I get like 900+ phys dps, than perfect chaos with hope to increase tiers, for 1100+ phys dps and preferably all tier 1 affixes (then slamming divs for maxing). But I've spent like 1000+ divs already (then stopped counting xD) and seems like with no effect. Got few 900+ but slamming with perfect chaos just got me down to my starting point... Is there a better way?

What I am aiming for:
-1500+ phys dps
-7 to all melee skills

What I am curious about:
-some talismans on the market have above 258% phys dmg - how? tier 1 affixes are: 179% + 79% (hybrid) = 258%; how to get like 271%?
-some talismans have +28% attack speed as abbyssal mode - how? the only abbyssal AS modifier is that low 18% with companions

each base type have diff stats ? So you need to aim for the best base to craft right ?
Also check what augments inside the talisman being used. Physical augments alone can push the dps higher than what is expected.