Yes, Simon exists and he is loved by the BLF community. He still runs that nice store, customer friendly and fair prices.
Speaking of Convoy S2+, you might want to consider if the beam should be narrow (then Osram White Flat) or you want it thicker (then SST-40 would do the job).
For hunting purposes i think it’s better to use 12 gruop 5A driver which allows to set just one 100% mode. Also type of switch can be discussed. Whether you prefer forward one (lights up the torch when pressed a little) or reverse (lights up after full switch click)
When you know what’s best for you, just write Simon at the AliExpress store and you’ll get it asap.
(Android link, hope it’ll work)