@sz,
Yes, until we complete honeybee-energy and honeybee-radiance in a couple of months, you’re really only going to be able to make Radiance models with lbt-honeybee.
You can use this function in the SolarCal module to get shortwave MRT delta on a person from the horizontal solar components that Radiance give you:
https://www.ladybug.tools/ladybug-comfort/docs/ladybug_comfort.solarcal.html#ladybug_comfort.solarcal.body_solar_flux_from_horiz_parts
This discussion shows how you can do it with [+] Grasshopper components: