I have used a million-year-old Boss GT-3 - live and studio - for 20 years. It has every Boss effect in it and has never failed to produce usable sounds for every recording fiasco I have attempted. For your home studio, whatever you use will work just fine. If you get a recording contract, you'll be re-recording everything anyways, so don't sweat the small details - get the best take you can with the gear available and make the song come alive.
And if that doesn't work, listen to the tones of Billy Gibbons or Jimmy Page. Standing alone you'd think 'what the fuck?'. But in context, there's none better.