Invest in a decent car or pickup and travel Thailand. If you're retiring to Pattaya without a vehicle you're going to be reliant on walking or those crappy songthaews. And, you'll be stuck in the farang slums. I suggest you hire a car for the day and explore the other areas on the darkside and bang sarey area, check out the Rayong beach areas.
You're going to need a car to have a decent life in Thailand. Walking with your zimmer in soi bukhao traffic is dangerous.