Making a (GOOD) Solo Mashup | Fab Forum | The Beatles Bible

I’ve had an idea recently to have a “new” Beatles album. They still had great songs in the 70s, so I want to make a mashup album that- unlike Everyday Chemistry- sounds like the Beatles and is epic. I’ve got really good ideas for the tracklist. 

Here are some of my ideas:

Let Me Roll It / Beef Jerky (replacing the main riff of the former with that of the latter, editing it to match it rhythmically), maybe at the end, where the riff repeats, have John’s screaming from Mother .

Nineteen Hundred And Eighty Five – have screaming from Cold Turkey / Well Well Well or Mother .. and paul songs. at the big ending- and ending with  a snippet of Give Peace A Chance (combining Paul’s and Ringo’s versions and taking george lyrics to add it in) instead of Band On The Run .

Combining harmonies and bass from the Beatles full band demo of All Things Must Pass and combining it with the final mix

Have Paul do a baseline on Ringo’s I’m The Greatest, add I Dig Love to the end of it, and Paul’s downwards riff on “Power Cut”

Using Paul’s bass on the Beatles ‘demo’ of Gimme Some Truth and a Ringo drum beat (all 4 would then be on it) (or get them to do it anew). 

My questions are

1.) How would those sound to you?

2.) Is it possible for me to do this, isolating tracks without the masters and if so, how? Can anybody help with it?

The concept I have is so amazing in my head and I really want to make it real.