Can you extend onto an already existing steel lintel? We have an external wall lintel which sits on a huge nib that sticks out into the kitchen. We would like to reduce the amount it sticks out into the room. Do we need to replace the existing Lintel with a longer length or is there a genius way of bolting on a smaller piece to span the gap? Hoping the answer is yes and that no one here is thinking I'm having a Jiraffe!!!!! Thanks