Prasert you are a dio machine buddy, looking good so far. Just a reminder in case you may not have thought about it, the suspension on the M48 should be lowered just slightly to accomidate a more natural settling of the beast.
Tamiya supposedly took measurements from an M48 without an engine, or so I'm told. I had lowered my original M48 on my Hue dio, but the second M48 I forgot to do it. The first was a victim of melted turret hull, lol. It's a common oversight if you get into the techies world, but don't make a hill of beans if you just want to get a beast built. Most of the exhaust snorkels were removed pretty quickly too from the research photos I have seen. I also used AFV's links, much better looking and worked very quick and easy.
Keep er rollin Prasert, loving it so far. Cheers, Ski.