oxygen sensor removal

Hi all, after some advice on an exhaust question. I have a delkavic system off another project which would fit onto my 13 plate wing.
I am removing the original exhaust to respray it.
I have fitted it but it does not have the oxygen sensor threaded hole which my oem exhaust has.
Delkavic have told me they do not have this part to sell seperately at the moment.
My question is would my bike run badly without the sensor being fitted into the exhaust or worse damage the bike's engine. I would not remove the sensor from the bike it would be put out of the way, I can then easily re fit the original exhaust when freshly painted.
I would only be doing a couple of 100 miles without the sensor fitted. The bike runs as it should in the garage but I haven't taken it on the road to test
Thankyou.

I can’t imagine things going well if you arbitrarily eliminate a functioning part. Proceed at your own risk.

Since it appears that you’re bodging this together why not get a sleeve to fit between the Exhaust header and the Delkevic. Then have a bung welded in that sleeve to mount the Oxygen Sensor. 

Why is it that you think that you’re only going to have that O2 sensor dangling in the wind for “a couple of 100 miles”?

Hi thanks for the reply, I will only be doing a couple of 100 miles to work and back over a week or so, giving me time to prep and paint the original exhaust. By the way the sensor would have been zip tied to something solid.
I'm not a fan of putting an aftermarket exhaust on my wing but it would have kept me mobile.
I will put the original back on and spray it etc later on in the year when I have some time off work as I want to do some miles whilst the weather is good.
Last thing I want to do is damage the internals of the engine as I want to keep her running sweet.