Need help trying to fit my 301 into a Singer treadle cabinet #5/#6
I'm trying to find a way to fit my 301 into my treadle cabinet. The back of the machine does fit into the clips and a tray for the 301. Now when lowering the machine back down onto the cabinet, the front part of the cabinet (the separate piece that raises up and down to lower the machine into the cabinet) has a long wooden 'stopper' to lean the machine on which is actually in the way. It looks like I would have to get a saw out and cut that part off the cabinet I'm really afraid to do that without checking here to see if someone else has adapted their treadle cabinet. Is there a template that I can find to help guide the process of cutting into the cabinet?
I believe this is a #5/#6 treadle cabinet. I've attached pics of the cabinet but can take more pics if more explaination is needed.
If you can advise it would be much appreciated.