ADF images for games that are sort-of system friendly might be the biggest hassle, as they might rely on more of the kickstart and not have enough space to start messing with them to add additional modules.
What is the problem if you install those to hard disk using whdload? Also, I do not think there will ever be a 1.3 compatible aros kickstart, but then again, whdload solves the problem quite nicely.