I think the only way the rabbit will chew the cable ties is if you leave a ‘tail’..
if you pull it tightly and then cut flush to the ‘neck’ of the cable ties, then he won’t get any hold on it….
Loads of people have these NIC thingybobs for their buns and apparently they seem fine for ‘average’ or small sized buns (LOL)
IMHO chicken wire (the sort of knitted hexagonale shaped stuff), personally don’t think ‘looks’ very nice esthetically for indoors…
To make my outdoor fence (second time as the first time I used plastic gridded fencing. = holes !! d’oh !!!!) I bought big sheets of metal grids for cemeting (put down on ground to hold the dried cement together…). Agreeably their intervals are 2 inches between each upright but maybe look in that department and you may find something else. Other type of smart metal grids were 10 times as expensive.
You could make a NIC thingy and ‘line’ the inside – first couple of inches from floor up – with a wooden skirting board or something so he can’t put his head through…. (is he really so small as to put his whole nose through a one inche square…??!!!)
One thing is sure, when you have rabbits, you have to be useful with a hammer and “think outside the box” to invent some wicked condos for them. (Mine has a 3 floor living-room-sideboard conversion !!!)