I know you want a level 3, but I like the Safariland 6280, it's a level 2 holster... also, if you look at the actual PDF will-fit chart, it shows more models than just the will-fit list on the webpage(s). I find this irratating, but it's been that way for a while. someone said they had come out with an ALS (6350 I think??) for the P30, I assume if they can get the ALS to work on the P30, they can make it work on the HK45..... personally, I've never cared for the 070... just my opinion...
good luck