If the altcoins run does come, your target seems a bit low. Don’t aim for just x5 but go for x100 to really make it worth it, especially with low-market-cap altcoins that have big potential. Maybe try spreading your investments instead of putting everything in one basket. Who knows, you might hit that x100 jackpot I’m talking about.
Lastly, don’t hold altcoins for the long term. Most of them are just hype and are better suited for short-term plays.
In as much as the possibility of it actually happening is not impossible but getting 100x this bull run will most definitely be from memecoins which are a big No to me except someone who has enough liquidity to gamble on, most of these memecoins are simply just pump and dump coins and only a few stay relevant over time, the possibility of getting this few actually might even be hard. There by losing a lot before even getting a one good run.
As you said diversification is good as you actually don’t know which of these shitcoins will pump up but one thing I will say is avoid diversifying and simply just invest into high conviction coins with good utility and once you see profits then I will simply advice to just take out capital and some profits and then keep moon bag just as you have said it is most certainly not good holding Altcoins for long