In Ironman mode, you can't trade, there is no AH access, there is no mailbox access. You are on your own. Therein lies the problem when you do trade skills in this mode, you can't get the cross trade skilled items, for example, enchanters need blacksmithed rods.
I would propose that trade skill essentials be sold/quested to players. Ascension is big on paying for convenience, and here is a example to sell ironman mode players some conveniences.
[Ironman's Shirt of Enchantment] 15DP on average $5 of DP.
Why equip? well it's a hard equip check to ensure you are in the game mode.
The shirt will not function outside of ironman mode so if you get it, level to 60 and leave ironman mode, you will have to go get a normal rod to keep enchanting.
This opens up the door for various other cross trade blockades to have solutions.
Ironman's Shirt of Skinning - Equip: Allows skinning as if you had max skinning skill.
Ironman's Shirt of Mining - Equip: Allows mining as if you had max mining skill.
The gather skills are easy to grant, but when it comes to things like blacksmithing, it might need to be watered down to what it lets you do:
Ironman's Shirt of Blacksmithing - Equip: Teaches you a number of skills to create crafting materials for other trade skills.
Potentially you also make them alter recipes?
Ironman's Shirt of Skinning - Equip: Rare or lower non leatherworking recipes that require leatherworked goods, do not need/consume leatherworked goods while equipped.
These could also be awards throughout the ironman questing rather than DP sales.
Or even sold for marks of ascension from dormo.