£26.88 plus shipping and the wait to get it over here in the first place, it also isn’t as unique!
The amount of material cut from the chain ring was actually a surprisingly small amount (considering it was ~1.5mm from the hole anyway), it is pretty much an interference fit with the cranks as well and is hellishly tight so definitely isn’t going anywhere any time soon (along with loctite and very very tight bolts). Aesthetically yeah, not great but it works!
Making my own chainring out of stainless would have been more of a hassle and would have actually cost me money to get cut out, the teeth are also chamfered which would cost more (as the ethirteen one is stamped and machined not laser cut).