I'm assuming you have a xls tracker with all these transfers, dates etc.
I'm pretty much just VentureX and IHG now. For flights, I buy my flights through the C1 portal and use whatever VentureX points I accumulated. For hotels, get me the cheapest IHG in a reasonable location. Definitely not near as complex as your itinerary.
I've maxed out on buying IHG points this year. I've come to the conclusion I'll need more IHG points for 2026 so am applying for the IHG Business card. With the 2 cards, this will let me double the points I can buy. Starting to plan for 2026 travel and if, markets keep up, it'll be pretty extensive.