For Economy 3SFE. AS G is performance Head and F is Economy Head.
For high rev Fun 4Age all the way but then forget the economy.
If you want a hassle free Engine Swap then I will recommend -5K or 7K. They are in 80HP range and not in 130HP range but will provide a lot more power then the original 3K/4K engine of Starlet.
For 20 V gathering all the tit bits will be quite a Task.