You should be OK, just make sure you can fit the double wall bit of the flue through the hole in the flashing kit. I'd give bell boutique or another well known firm a call, and have a chat with them about what stove and tent you have and the fact it's not fireproof canvas. Make sure you have a good gap between the stove and tent wall. It will mean bringing the stove out into the tent a bit, and loosing some floor space, but a 4m is a good size, so shouldn't be a problem.
I always use a fireproof mat to put the stove on too. Just in case coals fall out. You don't want to ruin your groundsheet!
Better safe than sorry!
A bell tent is an investment, I know the feeling about making what seem like irreversible changes to it.
If you change your mind later about your choice of flue, it is possible to patch the hole you've made, but unless you have experience of sewing canvas and know how to do the job properly it's a bit of a job, and there is a technique to it. Seams need to face down to keep it waterproof. So it realy needs a professional job. I learnt to do in situ canvass tent repairs in girl guides as part of my camp leader badge. I doubt they teach it nowadays with modern cheap nylon tents.
I used to make tipis, so I know how hard it can be to sew heavy canvas with a heavy duty machine, let alone by hand.
Tho a speedy stitcher is a great help there if you have the tent erected and a handy helper.
Good luck, stay safe, and enjoy.