Will C1 word with HDR Expose 3?

I like to use HDR expose 3 to generate HDR images. It has no Capture 1 interface or plugin. Does anyone have experience to suggest the best or a good way to use the two together to generate HDR images? Normally I make three exposures (-2, 0, +2) and use HDR software to merge and tone map them. I like Unified Color's HDR Expose 3 because for me the images are more 'natural.' (Unified color is now Pinnacle). I can generate tiffs with C! and merge those with Expose, but it seems that the RAW file would be better to use.
Any suggestions or guidance.
Thanks