Can't help with the heated jacket, never had one. But I will tell you what my biking clothing was for 10 hours a day courier riding during the winter.
Feet ; British army pro boots (combat boots with goretex lining, had to do a fair bit of walking delivering to 25th floor etc). 2 pairs normal socks, 1 pair british army arctic issue socks (toastie)
lower half ; 2-3 pairs of longjohns (wicking type, helly hansen etc). leather bike trousers with armour in the knees (windstopper), if really cold waterproof unlined trousers over top of leathers even if not raining.
upper half; 2-3 long sleeve thermal vests(wicking type), + as many jumpers as I could fit under bike jacket, cordura type goretex jacket with lining.
necktube with attached bib front and rear (HIGHLY RECOMMENDED)
No 1 stay warm accessory (but makes your bike look s**t) Handlebar muffs.
Only used to wear fingerless sailing gloves as had to operate walkie talkie type radio on the move.