Same! My family loves split stays -- usually 3-4 nights at a resort near HS/EPCOT, and then 3-4 nights at one near MK.
We book our rooms separately (sometimes a combination of DVC villas on rented points, and discounted rooms direct from Disney), and then purchase tickets from a reputable third party dealer (whatever one the touringplans ticket calculator tool -
https://touringplans.com/walt-disney-world/ticket-calculator-disney-world-ticket-discounts - tells me will save us the most for our dates). Once it's all linked to DME, you manage everything exactly the same way you would if you'd booked a traditional room-and-ticket package with Disney. As others mentioned, you will have 2 ADR windows, 60 days out from each of your check-in days, because
MDE isn't programmed to recognize that your hotel bookings combine to make a contiguous on-property stay.
Buying our tickets
a la carte saves us as much as $200 for the four of us for the week. Although that means we don't get the package-specific perks, like mini-golf vouchers or refillable mugs, those are things we don't tend to use anyway, so we'd rather have the ticket savings.