I'm in an almost identical situation.
- Elite Visa 20y
- Property in TH
- Aiming at Bali (much easier VISAS than TH, multiple entries)
I went to Bali to do some recce and it should work fine actually, planning on maintaining 2 houses (BKK & CANGGU)
Just waiting until the RD pull the trigger and reinforce the global taxes, I may pay the 1st year with fines and I will put the plan to work. The extra costs of housing + flights, gets offset by the taxes, and you dont need to deal with the accounting & filling