Different size wheel spacers on one side of my Tacoma

So I recently just bought a salvaged Tacoma as a project truck and noticed it had some rear frame damage im assuming. Paperwork state "Rear Suspension Frame is crooked and needs to be aligned at bodyshop." I had the truck inspected and all is safe and nothing would be wrong just looks a little goofy. Ive already driven it about 20k miles and no issues. All the body shops near me are booked out till January, I was wondering if i added wheel spacers on the Drivers side of the truck would that be safe or should i just wait? I currently am running 1.25' Spacers on all 4. I was thinking of going to a 1.50 or 1.75 depending on the wheel difference. Would having one side of the truck on 1.25' Spacers and the other side on 1.50-1.75' work or will that be unsafe or damage my truck?