What are you using for a tone arm on the Basis 1400?
If it is the semi-standard Rega RB 300, then you could sell that, and purchase a Basis Vector tone arm, which would be a decent upgrade. (If you can find a Vector M3, (the M4 is the current model), for $1,500, then after you sell your RB 300, you'll be pretty close to your $1,200 figure). This will be a sonic improvement that you can truly hear.
Another upgrade would be to install dedicated circuits, if you have not done so already. This is another improvement that you can readily hear.
My two cents worth.
If it is the semi-standard Rega RB 300, then you could sell that, and purchase a Basis Vector tone arm, which would be a decent upgrade. (If you can find a Vector M3, (the M4 is the current model), for $1,500, then after you sell your RB 300, you'll be pretty close to your $1,200 figure). This will be a sonic improvement that you can truly hear.
Another upgrade would be to install dedicated circuits, if you have not done so already. This is another improvement that you can readily hear.
My two cents worth.