Agreed. Even if he comes to power earlier than OTL here, he will still absolutely have his work cut out for him. According to my research, the biggest hurdles to reforming the USSR in the 80s were: the financial difficulties created by excessive spending (especially on defense) which led to staggering, unsustainable budget deficits; entrenched political and military interests who saw any change as a threat to their personal power (and the gravy train of corruption they'd enjoyed for so long); and the repressed yearnings of various ethnicities and nationalities, some of whom really do want to be free from Russian control and domination.
Here are my broad notes on the USSR going forward. I'd love to hear everyone's thoughts, if anyone is interested.
If Gorbachev is going to stand any chance of saving the Union, I think he'll need to introduce aspects of economic liberalization in order to combat the bureaucratic gridlock and stagnation. I'm not an economist, but I believe that this could look like slightly more radical versions of the reforms he attempted IOTL. He could scrap production q, uotas, reduce government subsidies, and allow state run companies to set their own targets and control their own production and distribution (so long as they can meet direct orders given by the state). In the short term, this will
butcher the Soviet economy. Without those subsidies, many of the state-run enterprises will go bankrupt. But, if he combines this policy with suitably massive reductions in government spending on defense (say, by signing Strategic Arms Limitation Treaties with RFK's America), withdrawing from Afghanistan, and ending Soviet support to communist countries and movements around the globe, then he might be able to free up budget to ensure enough social welfare spending to help the Soviet people survive this shock to the system.
The Soviets' greatest geopolitical advantage is their natural resources. From my research, as of 1982, they control roughly 30% of the world's natural gas reserves and massive oil quantities as well. Even as America ITTL covers itself with domestic/western hemisphere production and reduces demand for fossil fuels with renewables, Europe, East Asia, and other markets are still going to be thirsty for cheap energy to fuel their booming economies. If Gorby is wise, he can (at least in the short term) use warmer relations with the West and key investments in the energy sector to turn the USSR into Europe's primary energy supplier. Then, once those oil and gas revenues start pouring in, he can begin to close the USSR's budget deficit, and focus on reforming other aspects of the nation's economy, making new investments in light and heavy industry, etc. The difficult part is making that transition, however.