The only concerns I have recommending a 'thrift' belt are these:

Check the edges and back of any belt you are going to be placing against your kilt.
Make sure that the edges are rounded and properly finished. The back should be burnished smooth or lined with a soft leather.

A 'hard' or square edge, especially the kind found on very cheap belts, will chew into your kilt just as fast as a chain, possibly faster.

A rough back can do the same.

ith: