I've got a 2004 Focus ZTS and I'm thinking of turning it into somewhat of a rally car. By somewhat I mean I'm not going to actually take it to a rally and get 5ft in the air.
Here's my idea.
I own a company and drive alot of dirt road(oil field road). I normally drive an F250 but all I need is a laptop and a screwdriver so it's way over kill to drive the F250. I'm thinking the Focus with a roll cage and suspension would be fun. I don't know if it will survive the dirt roads for long though.

I normally don't get above 55mph on the dirt, as crappy as the roads are so I don't think I need to shed all the weight that I could. This means I could make it more comfortable. It is typically over 100 degrees in the summer here so I want to keep the A/C and the radio would be nice too, as I normally work 12 hour days and 10 of those hours are in the vehicle. I could also use all the graphics on the exterior to advertise for my company. I'm also on the blacktop alot too.
Can I get some feed back as to wether you think the suspension and roll cage would hold up, thoughts about keeping A/C & radio, Suggestions in general?
PS I'm new to the Focus and Rally Cars so any info is greatly appreaciated.