Hi & welcome back VicSupremeUSR:)
As you can see from the warnings so far the offerings from CUSA might not be what you require if you are hoping to recreate the feeling of your old classic Amigas.
Today the classic Amiga experience on modern hardware can be enjoyed via either AmigaOS, AROS, and MorphOS.
Each has it's pros & cons but do your research and ask questions as that's why Amiga forums like this exist !
Either way welcome back and I hope you enjoy your newly found free time with your chosen new 'Amiga'
