First of all, I've thoroughly enjoyed all the 'journal' threads I've read, most based on this playstyle.
I've been mulling over trying it out myself and have been thinking about some of the restrictions.
The carry weight - Thinking about this one I've thought, especially for the 30% one, it could get complicated calculating it out.
My thought was to have all characters use the 20%, eg divide the carry weight by 5 and then add a +- modifier based on the desired starting weight. This also makes stamina the same for carry weight on all characters by providing 1 weight every level, as opposed to 0.5, 1 and 1.5 respectively.
Crafting - One of my thoughts on this was to limit the character's crafting skills based on their combat skills, having the combat skills set a cap on how high the crafting profession can be raised.
My first prod at this didn't really get far as equipment was still really easy to come by even with the restriction, so I thought, why not leave that in but restrict use of just the Forge, it will still allow tempering of equipment, but you'd still have to find it first.
It might also make it slower to level seeing as you'd have to level it by upgrading the loot you bring back as opposed to just making lots of equipment to sell off, while still allowing you to progress in the skill. With the carry capacity also acting as a speed bump to this as well.
Haven't tried out enchanting and/or alchemy with this as of yet, I also don't have alot of experience with those normally anyway, but the combat skill cap might work well enough for those.
I kinda wish I had this on the computer... My plan was to wait a bit before purchasing it, waiting for the Creation Kit and the mod community to build up a bit and then getting it for the PC, but I was given the PS3 version for Christmas so ended up playing it a little earlier than expected.
I am enjoying it, but will eventually be upgrading versions at some point once the mod community grows.
Really wishing I could have the UI toggled selectively, it's kinda difficult to loot stuff without a crosshair XD
Crosshair off while sneaking/combat mode would work with this just about perfectly... Perhaps still have the regular crosshair while sneaking but not the hidden one...