I began this a month ago
SnG marathon
Your risk of ruin is through the roof with the way you want to do things. I suggest a more moderate pace, and you really can turn that $30 into $2000.
I do recomend starting with $1-200 and start right from the 10+1's but I understand wanting to start from the 5's.
I am currently starting month 2 of my marathon, and I will post an overdue update soon. I worked my way up to the 50's where I got killed facing tougher opponents mixed with some bad luck. I am happily back at the 30s trying to make back up the dent I lost.
GL in whatever you do.