Homemade Adjustable Strut Rods?

If it "eats tires pretty badly" then it's NOT ok, regardless of how many miles it's gone. The alignment is wrong at the very least, but fixing that could require taking care of the old repairs on the K.

And again, the point of adjustable strut rods is not to add caster. Having adjustable strut rods allows you to keep the suspension bind-free through its range of motion while compensating for geometry changes in the suspension that often come from aftermarket parts. Sometimes that does mean getting some additional caster, but it's a byproduct.

If the caster was added with the cobble job on the strut rod, there's a good chance the suspension is binding, and the tire wear already tells you something isn't right.