If they buckle under a 10-stone rider, even off-road, they are poor indeed.
If I was looking to spend that kind of money you could get something handbuilt and bomb proof like these https://www.spacycles.co.uk/m2b0s17...uilt-Wheelset-Shimano-LX-with-H-Plus-SON-rimsYou don’t say if you need rim or disc ( centre lock or bolted) , I’m assuming disc type but I’ve had good results from basic Shimano wheels which seem to handle the dreadful roads down here. These are reduced at Evans but are centre lock disc:
https://www.evanscycles.com/shimano...mpatible-disc-brake-700c-front-wheel-EV310919