If you are going to keep the steering box in the location that you have shown, you are going to have to shorten the steering column and shaft, and do some minor relocation of the column. You can probably use the existing steering column supports, but you will have to heat them and bend them a little. Try and get the shaft centerlines to line up when viewed from above, and as close as possible to being in the same 'plane" when viewed from the side---not one above the other as you have shown. The maximum shaft misalignment that you can have without binding is 35 degrees for a single u-joint. If your shaft alignment exceeds that angle, Borgeson sells a "double" u-joint. Cut the rag joint coupler off the end of the steering shaft with a hacksaw. If the shaft is solid, measure it with a Vernier---you should be able to purchase a Borgeson joint that has a plain bore of the same diameter on one end, and is splined to fit the input shaft/spline on the steering box. If it was my car, I would get everthing set up so that it steers good, lock to lock, then weld the Borgeson u-joint to the steering output shaft---(they come with set-screws, which are fine on a splined shaft, but on a plain shaft I don't really trust the set screws alone.)