Yup, cream ales were designed as the working man's beer in the North East of the USA when they were big manufacturing centres (Baltimore etc) and the local breweries could crank out a lager-ish beer without having to actually tie up the equipment by lagering it for weeks. In its own way it was not unlike UK mild ales, sink a few pints on the way home.
US-05 or Wyeast 1056 American Ale will do a great job if you can ferment at around 16-18°
Here's what I do:
Take a stockpot type pan of around 10 litres on the stovetop, boil up the corn and rice for around 45 minutes, stirring frequently till you get a fairly smooth porridge, adding water from electric kettle as you go and try not to get any burnt bits.
When nicely cooked (ie. gelatinised) let it cool to about 74 degrees and stir in around a third of your base barley malt, dry. Stir like buggery. The alpha amylase will kick in almost immediately and the porridge will magically turn into a thin soup as the enzyme zaps the starches. It's a real jaw dropper
Then just let it cool down to whatever strike temperature you are aiming for and pour it into your main mash as if it is strike liquor, making sure you include its volume in your calculations. Advantage of this method is that you have let the alpha amylase have free reign so your adjuncts are properly zapped, as opposed to putting them in the main mash at (say) 65 degrees when the alpha is a bit out of its territory.
You are going to make a smoooooth beer, guaranteed.
edit; hey I see you are in Thailand and using Joe White Australian malt, you won't have any problems as it's highly diastatic and will eat those adjuncts and look for more.