Spacers are OK if you just want a little bit...like a 1/4”. The problem is they load the bearings and ball joints because of the longer leverage of the wheel being farther out. If you baby the car it’s not a big deal....if you auto cross it it is.
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Thought I might go the wheel spacer route to keep it simple.
It would take a bit of Engineering and a competent Welder, but, widening the K-frame an inch is within reason.
I share the OP's concern: I don't like the way the wheels are tucked under the car either.