I'm about to play a forge domain cleric of Gond with a clan crafter background and a feat spent on prodigy, giving him expertise on sleight of hand for the finer work/detailing (possibly a stretch of interpretation of that skill)
the combination of class, race, background and feats makes it so that I have gotten/chosen proficiency with leatherworker''s, jeweler's and smith's tools.
We are playing the dungeon of the mad wizard for a weekend long marathon game.
We start at 5th level and will possibly reach 8th at the very most.
This means that I probably won't get a chance to do any crafting worth writing home about. Still, I have written something in the background that my character shall still strive to accomplish or at least work towards. Basically he has been apprenticed with 3 specialist artisans in the 3 fields he has tools proficiency for. As a mark of him having completed his apprenticeship, he wants to craft a single item that incorporates elements of all 3 of the above and celebrates Gond in the process. His masterpiece, so to speak.
My idea is to craft either an altar cloth or a banner, to be placed in the nearest church of Gond. this banner or cloth should be of the finest leather, inlaid with mythrall engravings and a super thin layer of mythrall centerpiece in the shape of the symbol of Gond. Adding to this, it should carry on each quarter of the shield of Gond, a Glyph of warding holding an enchantment that the officiating cleric could use. I'm thinking of (mass)Bless, Cure wounds, Zone of truth and Ceremony.
The challenge is making the glyphs permanent both from a magical point of view and the physical representation, so that they can either be recharged by the cleric once the spell is used, or, even better, so that the cloth regains an x number of slots a day and recharges itself.

THE ACTUAL POINT OF THE THREAD
Taking all of the above into consideration, how would you, as DM, rule about crafting such an item? what would your requisites for completion be? what the material and magical costs and requirements? how long would you want this to take, and at what level would you deem the character proficient enough to be able to pull it off successfully? would it be something that requires downtime and exclusive focus or something that can be also in parts worked at at camp, inbetween days of dungeon crawling?

This is mostly a thought experiment but could be also an interesting proposition to make to my DM, as a side-quest for my character in the upcoming marathon.