You could always consider doing more than one thing. There are two separate elements to your question. Firstly a lump sum that you are confident you will not need for 5 years. Secondly a monthly amount that you can save. You would like to earn something on both and feel like you are getting a return. At the moment cash savings will not return much. You will have your lump sum at the end of five years but the value of it will have eroded somewhat due to inflation.
You could consider doing different things with the different elements. As you are not comfortable to risk the lump sum you could deposit that in a fixed term account, obviously choosing the best return you can obtain. With the monthly savings you could opt to put it all into a regular savings account, opt to put it into an investment account or split the amount in two and put half into a regular savings account and half into a more risky investment. That way you will not be risking your lump sum but will be increasing your chances of gaining a better return.
I would suggest that Pathway 6 is probably far too risky for you. Pathway 4 would be a better option.