both work, the main issue with EE armors is that leather/scales with ee are HIGHLY desirable seeing that headhunter can use it, so all the guys with lots of fg want a good scale/leather.
A 40 dex leather/scale costs very little by comparison, so yes i'd keep using your 50 dex scale, you'd probably want 140ee to be somewhat equivalent and can expect to pay upwards of 2k fg for that sort of item. 180ee costs 10k.
Main thing i would recommend is buying a level 55 dagger.
your current weapon is about the same damage as a 92ee level 55 dagger, i explain in depth here:
https://forums.d2jsp.org/topic.php?t=82816922&f=74so getting around a 130-150ee dagger will make a significant difference.