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There are no line limits as of patch 8193.36 which fixes an issue with line IDs over 255 wrapping around and causing issues with pickpocketing or acquiring items. Even before .36 those lines worked server side just were buggy with certain client feedback.
Item Part Limits
The max limit of 255 item parts has been elevated in EE patches. The ID number used for the MDL name will be usually 3 digits (000 - 999) until it hits 1000 then be 1000, 1001 etc. so note that when making longer base item names so you don't go over 16 characters.
Note only the toolset uses MinRange and MaxRange, the game just uses whatever the GFF / script commands tell it to use.
New Armor Cannot Be Added
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