Judging by the above information, and what I know about the statutes and thresholds of similar cases here in Indiana, there's a strong possibility he may see no jail time. Many jails, and several prisons, here are overflowing, due to the drug epidemic here in the States. Indiana went through a major reform of its legal system within the last few years. A Level 6 might get him, at the very most, a fine and maybe a short jail sentence. Many Level 6 convictions here are resulting in local jail time, or even in some cases house arrest/ankle monitor.
The possession/paraphernalia may get thrown out, it's happening all the time these days, despite Indiana's prohibition of cannabis/marijuana. Driving w/o a license might result in a fine.
MOO