The truth is that there are very, very few adventures that are truly worthy of reprinting. TSR produced a lot of lacklustre adventures, and even the early ones often look poor to modern eyes.
The slave lords series, in particular, has particular structural problems due to its tournament origins. In the first three adventures you get five scenarios by several authors that lead into the second part of the third module and finally the fourth module. The quality of each section is quite varied. My personal feeling is that they get better as they go along, with the adventures in A1 being the weakest and the adventure of A4 being the strongest.
Is it worth reprinting? I'd say it is.
Cheers!