I’m plotting out my trip plans for this year. Getting a bit stuck in some areas and could use some ideas/suggestions.

The trip will again be a combined DAS13, DONE3 and some side trips, hopefully I can get it all issued in 1 PNR this year...

I’m fine with the DAS13, only issue there is to decide if I go with a stop in Osaka or Taipei.
CBR-SYD-HND-DONE3-ITM-HND-SIN-MEL-CBR or;
CBR-SYD-HND-DONE3-NRT-TPE-HKG-SIN-MEL-CBR

The issues I’m having are with parts of the DONE3.
Starting from TYO going to BOS or JFK either direct or via HKG. Planning to go to an event in MHT.

Normally I’ve flown into New York and gotten an extra off RTW ticket flight up to BOS in the morning and connect to the Boston Express bus up to Manchester. However, the NRT and HKG-BOS flights arrive in the evening and the morning JFK-BOS flight no longer exists, so it looks like I’ll have to overnight in New York or Boston before going up to Manchester.
TYO-[HKG-]BOS looks like the better option here, but then that leads into the next issue.

If I fly into BOS from Asia, I’d need to spend an extra sector on a short flight to get to NY, but if I fly into JFK, there are no morning flights to BOS and the evening flights don’t connect well to the bus.
(Last year, I flew into JFK on the morning JL flight and connected to an extra side flight to BOS in the afternoon to be in MHT early evening, then got the bus back to NY from a friends place in Central MA)

I’d have 10 days between the next locked in stop, PDX, and was thinking about 2 or 3 stops in between. NYC, SFO and SEA (where I can train/bus down to PDX for the weekend in Portland).

With the removal of the “D books into A on 2 class AA domestic flights” rule, I no longer have any reason to avoid the 3 class flights, so can get JFK-SFO, but then how would I get to SEA? Back through LAX? But then would flying JFK-LAX and doing LAX-SFO-LAX as a side trip be better?

After SEA/PDX, I have a final locked in US stopover at DTW the following weekend, with time for another stop between SEA and DTW.
I’ve been trying to find through flights on AA (eg SEA-PHX-STL on a single flight number) that could get me both from SEA, have a stopover, then to DTW with only 2 sectors used, but with the way AA randomly changes where/where those flights are is getting rather annoying. So my options for a stopover here appear to be ORD?

For Europe, I’m looking at 1-2 stops in either CPH, BUD or VIE via HEL (which means getting to JFK or MIA from ORD/DTW) or DOH, followed by –LHR-DXB-LHR-Asia with day stops in one or both LHR and DXB if time/availability allow.
For example, I could get the morning BUD-LHR flight QF3503/BA865, spend the day in London, then get the overnight QF2 to DXB, spend the day in Dubai, then the overnight QF1 back to connect through LHR on to Asia.
Perhaps something like –JFK-HEL[-CPH-HEL sidetrip]-BUD-LHR-DXB-xLHR-

Then finally a stop in PEK, PVG, ICN, BKK, KUL or HKG before finishing up the DONE3 with –xSIN-TYO.

Any suggestions?