Thai dtv

I am wanting to get a DTV visa (soft power). Currently I have over the minimum bank balance. However the end of May I have to spend 13k of the 22k in savings because that's when the cruise balance to get there is due. Before you say why don't you fly, it's because I have 2 SD and 1 has a minor heart murmur and commercial planes can kill dogs with heart issues no matter how minor. I'm a disabled veteran so I receive monthly payments to afford to live in thailand plus I'll be receiving housing allowance while attending online college courses from a US university. Can I apply on my own or is there an agent who can help me? Or should I just apply in May and loose several months on my dtv visa because we don't arrive until the end of October.