6 years ago I graduated after doing an agricultural science phd. By the time I finished the degree I was a disallusioned little soul so I got a job in humanities and that was the end of that.
I was disallusioned because I had no career guidance before or after my phd, my phd was industrially sponsored so I could not publish whilst doing the phd or present posters etc at conferences because of confidentiality. In addition, because I was very busy in obtaining results for industrialists I did not gain any teaching/lecturing experience - it was not offered to me either because the supervisor always passed the opportunity to other phd students. Being very shy and quiet at the time I did not push harder either.
To add icing on to my cake, I had a very bad personal year (nothing to do with my studies) which meant I had to stop writing a thesis for 1 year.

Now after 6 years, I have got ontop of things - I wish to pursue an academic career in research, publish and get involved in teaching. With no publishing, recorded teaching, or further research experience how would I have any possiblity of gaining a post doc position knowing that there is a lot of competition too out there?

If it was me I would look at getting a research assistant post, preferably one advertised to newly-qualified PhD students. You would be qualified based on your research skills developed in your PhD, but wouldn't need additional skills like teaching/lecturing skills. Then once you have that post look to develop your teaching/lecturing skills where possible, if you want to move into that field.