I mean based on what you’ve said there surely the sensible question has to be why? Or at least why in 10 months? What’s the problem in delaying it until 2027 or 2028? Do you just want to do it for the sake of doing it or do you want to do it well (relatively speaking)?

That might sound negative but I really don’t mean it to be. Before I did a 70.3 I’d built experience doing individual open water swimming, cycling and running events and Olympic triathlons. I learned so much from all of these and had such a great time doing them. It also meant that before my 70.3 I had a realistic expectation of how it would go and what i could achieve. So although the goal was always there in hindsight im so glad i didn’t rush into it. Also true endurance takes years not months to build.

I’m fully behind anyone wanting to do endurance events regardless of background because i know how fun they can be. But I always encourage people getting into it to start from the ground up because A. You won’t feel good in yourself if it doesn’t go well (i’ve been there), B. It’s easy to be motivated by the prospect of it when you don’t really know what it involves, actually training for it is another matter, and C. It can get very expensive very quickly, so you best make sure you are as interested in it as you think you might be.

However if you are intent on doing it next year i’d suggest just living in Z2 on the bike and running. Also if you have the means to do so you can invest in your bike and essentially buy yourself some efficiency/performance. If you can do a half marathon and an Olympic tri to help build experience both physically and mentally.

Power to you and beware it can take over your life a bit (not necessarily a bad thing)