I have done some testing on a chinese 3535-size 365nm led (from intl-outdoor.com) and while it does not have the output of the Ledengin LZ1, it seems to get to about 40% of the LZ1 output, with a spectrum maximum of 370nm which is pretty ok. If the LZ1 cures stuff in seconds, this emitter will probably do fine as well. This is assuming that the Convoy uses a similar led...
On a side note, you are all luring Christian into flashlight modding, but I remember when I started doing that nothing came for granted, it was quite an extended learning curve. I think that if he has a practical and present need for this flashlight it is a way better idea to just buy a complete light.On the other hand, if you do have the time, it might be the start of a nice hobby :-)