I finished stripping figs using Simple Green. That is one aspect I really like about metal figs is the ease of re-use.
I got the squigs, herders, and hoppers glued to their bases. Both the herders and the squigs were going to have a lot of issues with ranking up. So I based a lot of them at angles instead of straight forward. Also, tilted the long herder pitch forks upward so they could rank up as well.
I also got a good amount of them based with pumice and cork. I was concerned I wouldn't be able to afford the extra time to use pumice instead of gluing sand. However, by using pumice, I was able to skip the step of filling in or taping over the gaps in the base slots. The pumice doesn't sink in to the gaps like sand does. So, I don't think using pumice added much time at all.
I also found the fig I am using for the tzeentch herald, but more on that later.