The TR full distance plans are bike focussed, but there has been a cadre of people using sweet spot base and sustained power build in the Ironman Training threads over the years with some success.
If it’s your first Ironman or first TR plan then I would recommend sticking with the Tri plans though.
How has your training progressed since October?
It might be worth reposting in the Training thread as unfortunately you posted before on roll call day, so your question got swamped by everyone posting about the monthly training 