My crafter is just 47 magery, 89 with jewels and a +12 magery spellbook, and 0 eval, but he didn't have any problem gaining from 0 to 10,000 loyalty in one evening by tackling the toxic sliths. It took more like 4 hours, though, and he died 4 or 5 times.
The way I did it was to just keep trying until I finally summoned an EV, then lured them in and cast invisibility; with magery that low, your toon will sneeze about 8 or 9 times for every EV that succeeds. However, once he does succeed, all you have to do is to precast invisibility, run close enough for one of the sliths to target you, then run back to the EV, wait for the slith to get close and target yourself with the invis spell. The EV will do all the work. Then rinse and repeat till the EV dies. If you get lucky and manage to get 2 EVs going at a time, you can lure 2 sliths at a time. When I thought my EV was about to dissolve, I would quit luring the sliths into the EV and start trying to cast another EV.
If you just buy the 31 magery in Malas, you should be able to gain to 47 without any trouble.
Equip your crafter with as much LRC/LMC/MR gear as possible, since he probably won't have meditation and it's a hassle carrying a pack full of regs.