Ah - sorry TJ. I didn't realise you were planning this on the tandem. How about this for a plan...
TJ & Mrs. TJ start in Bonar Bridge and head West at a leisurely pace on the Saturday. The one-dayers set off from Ullapool at the same time or a bit earlier. Everyone finishes in Ullapool on Saturday afternoon/evening, possibly in smaller groups/pairs.
Big get-together in Ullapool on Saturday evening.
TJ and Mrs. TJ ride back to Bonar Bridge on Sunday. You could even get your evening wear to meet you in Ullapool.
Possibility?

