I've given it a shot and I haven't regretted it since!
I'm currently a level 33 and I've developed a few idea's/tips for this build.
For the Runes, I took frost runes asseen those actualy slow down the speed of enemys, giving you more time to shoot them.
You also might want to look into having mages armor ASAP, asseen playing on master difficulty like I do, can be very challanging with only 40-120 armor....
For the Guardian stones you might want to look into the Serpant stone, especialy on early levels.
Being able to Paralyze a target for 5 seconds is extremely useful early on... especialy when you are facing a tough opponent.
For the bound bow spell, I looked up the position of the spell, because I knew I was going to use it all the time,
I thought I might aswell get it early on, instead of getting to level 50 conjuration first.
For those of you who want to know were to find the Bound Bow spell;
Hidden under a lantern in a bucket in the NNW corner of Fort Amol Prison.
In the chest across from Thorald Grey-Mane in Northwatch Keep when he is freed during Missing in Action. (Not always)
Further more, I don't realy agree to your 2/3/2 magica/health/stamina build:
I think it would be much more be beneficial for something like this, 3/2/1
I havent realy thought the exact points out, but my guess getting something like, 300-350 (depending if you choose the Altmer race)
Then something like 300-400 Health, depending on how much you need and about 200-250 stamina,
again depending on how much you need.
For the armor part, I decided to go along with mage armor, asseen that is more in the ally way of an arcane archer.
I have about 90 enchanting and things are getting realy interesting now...
Though my advise on this part, as stated before, Take mage armor as soon as possible when you are using robes...
You realy need this on harder difficulties...
For the enchantments I think going with Extra bow damage and more magicka and magicka regeneration.
Possibily some stamina enhancements if you realy need so.
For the robes themselves, I'd go with all unenchanted exept master/archmage robes,
asseen those are better then what you actualy can enchant,
For the quest lines I'd love to be able to join the thalmor, aseen those kinda fit in with the RP element.
I think that concludes it, feel free to reply/message me if you have any more questions about my playthrough or experience.,
I'll be checking this thread regularly.