Johnatan has recently re-done Lotus Turbo Challenge with blitter - with great results - assuming that you would take on Atari STE's blitter and 4MB RAM which is common: https://github.com/jonathanopalise/lotus-ste - that could be worth looking at. Of course base system with 1MB RAM an no blitter would be a thing too. Atari ST has now cheap SCSI (ACSI) emulator, so you can have 512MB assets on SD card stored and read quite quickly. And we all remember Silent Service II!