Woooo, I actually managed to level to 85 in a 1-week race, go me! *crickets*
According to /played, it took me approx 35-40 hours of active play (after deducting afk time). I spent approx 20 hours of those doing the main acts (vs 6hr speedrunner time, vs 12ish hr fast good player time). Yeah, I'm fucking slow.
I went SSF-lite, in terms that I allowed myself several small puchases (spent maybe 30-35c on gear), and I haven't sold a single item (mostly because you couldn't use non-premium tabs to trade in this race - POE WENT P2W KAPPA).
Played a fire nova mine saboteur, which was a totally fresh experience for me, since I've never tried mines properly.
It was actually hella fun. FNM is actually a pretty strong skill once you learn how to properly into mines.
Plus, the build is an SSF darling - it has no mandatory uniques.
Also tried arc mines, but those are rubbish - good and safe for map trash clearing, but the moment you have to deal with a boss or a tanky rare, you're fucked, because arc has absolutely shit single target.
I also managed to successfully try out and appreciate the power of recently-buffed MoM keystone, as well as 2 uniques - The Covenant armour and Immortal Flesh belt. Both of them work pretty damn well for mana-heavy builds that also use MoM.
A bit of stats reflecting the current state of the game (what to expect by lvl85, RNG giveth or taketh):
* I managed to get up to t8 maps and can sustain them (46/126 atlas completion). That's mostly thanks to buying the missing maps from Zana - those chance orbs do come in handy. Haven't found a single t9+ map though.
* I've done maybe 60-65 maps in total, including Zana missions and a couple of breachstones and Atziris. That means that I barely did any "map grinding" - most of the time I simply did the maps I haven't done on the atlas yet. And only by the time I hit t8, I had to re-do a few t6-7 maps to ensure I had a decent supply of t8 maps.
* My average xp/hr in maps was about 85-90mil.
* I died 25 times, most of which were in maps due to being mechanically shit player trying to speed-farm breach+beyond combo.
* I've only found 3/6 uber lab trials on my own. This is still the shittier part of the endgame RNG (along with finding Zana early).
* I've leveled all masters to lvl5, and one to lvl6 (plus a couple halfway through). This was done purely through doing dailies and occasional map missions (I haven't seen too many of those, and even skipped about half of them to save time for the race).
* Master crafting proved invaluable during leveling and early mapping.
* I haven't experienced shortage of any kind of orbs for crafting.
* Got all main gems to lvl19.
* I managed to acquire 3 expensive items (Signal Fire quiver via prophecy, Cospri's Will armour via drops, Mortal Grief via Atzubi).
* I also managed to collect enough jewellers + fuses to successfully 6S+5L my endgame armour and have a bunch of them leftover.
* During leveling and early mapping, I managed to acquire decent self-found rare gear to bring me to ok life (4.5k+1k es) and maxed ele res, plus decent damage boosts. Only after that (and saving a bunch of chaos via chaos recipe) have I allowed myself to buy "endgame" gear. This bumped up my damage slightly + got me a decent ele res overcap and another 500 life and 600 es.
* At the moment of writing, my total approximate acquired wealth in pure orbs amounts to about 3,5-4 ex in LSC prices. Can add approx 1,5-2 ex in found items of actual market value.