As far as the front wheels are concerned, I can rotate them (steering) about 15° in both directions. I can’t say how much this is:

but I doubt that this will be possible when I move them inwards…
The easiest solution would be to move the back wheels inwards to fit the rear axle and leave the front ones as they are now..is that correct? I don’t know, but it might be when looking at this:

or this:

Really hard to tell…