Tegiwa are selling Defi's now. I just got a set of BF gauges from them during their Black Friday offers. I would message them 1st about availability of specific colours and gauges as they have a 15-20 day delivery window on all of them on the website, however my gauges were actually in UK stock and with me in 2 days.
If not Tegiwa then Tein UK are also a reseller of Defi