cheapest way to convert to manual steering?

I was talking to some who have said they just pulled the shaft out enough to be long enough for the manual box. Im wondering if there is enough engagement after doing this for it to be safe to use and have the column still collapse on impact?
There's plenty of engagement the lower shaft only has to come out about an inch and a half which leaves about 3 inches of engagement the only problem is once the plastic shear pin between the inner and outer shaft is broken you will get some play in the steering shaft which will cause an annoying rattle.