So the balance of forces will be much more heavily British. I know for example the US 509th parachute regiment wouldn't be available yet ITTL. OTL the unit shipped out for the UK in June of 1942, and despite months of training alongside the British 1st Airborne division units, their combat jump still turned out nearly disasterous. I've seen nothing ITTL that would imply that unit being available.
The British 78th Infantry Division will also likely not be available yet, though some of the lower level units that came together to form the division might be available. The division was originally assembled in OTL specifically to take part in Operation Torch, and the division commanding general, Major General Vyvyan Evelegh, wasn't even assigned until up around the middle of June 1942. So to go from being promoted to bringing the various components of an entire infantry division together from scratch in only about a month to six weeks would not be a good idea.
http://en.wikipedia.org/wiki/Operation_Torch#Preliminary_contact_with_Vichy_French
For that matter, given the obvious nature of the target, has anyone ITTL done any operations to feel out the Vichy commanders in North Africa like OTL.
http://www.navweaps.com/index_oob/OOB_WWII_Mediterranean/OOB_WWII_Casablanca.htm
For US units. I'm guessing also that 2nd and 3rd battalions of the US 67th Armored regiment that assaulted Safi may not have any M-4 Sherman tanks available in June or July timeframe. Historically aside from the 54 Shermans assigned to that portion of the invasion force, everyone else was still using the M-3 Stuart light tanks.
http://en.wikipedia.org/wiki/Convoy_SL_125
You're also going to have to figure out a suitable submarine target in place of the OTL Convoy SL 125. I don't know if there is any proof or not, but some historians have thought that SL 125 was intentionally planed to create a diversion for the forces participating in Operation Torch.
ITTL despite the German surface fleet having been taken care of, the U-boat arm seems to be doing rather well so far. With four less carriers then OTL(No Sangamons and your proposed Kennebecs will not be ready by July 1942 no matter how you try to spin it, it's not happening) and possibly some of the OTL escort ships still not being available yet due to the earlier timing of the invasion, you're looking at a major risk from U-boat attack which you've really not addressed at all.
As to the timeline in general, overall, I quite enjoyed the last update, and really didn't see any issues or anything with it.
As to creating a timeline only thread, do you plan to update on CF.net also. Given the activity or lack thereof over there, you've kinda already got a timeline only thread in a way, all it really needs is being updated with some of the more recent sections and you're good to go. No need to make three seperate threads for the same thing.