Well I won't get a Westcott speedring because they are a silly price but there are cheap Bowens ones which I could then get a flash stand mount for. About £20-£25 for both. Tempting.

New speedring arrived, one of these but not from Amazon. Fits the softbox, just need a flash stand mount for it now and I might actually be able to use it. But probably sort it all out then put it away and never use it.