Ask for a casual appointment. City is a completely different ball game tho, if you have any type of health issues...bad knees or something you better think twice. Just because u do a casual appointment they still have to hire PTFs from the list. You will be a pack mule for maybe $12/hour. They will use and abuse you for the whole 3 months...and your still not guaranteed any xtra hours. As to a RHD..If you got something now you can drive I would leave it at that, until Your absolutely certain the job is for you i wouldnt invest a ton of money in one. If you were a regular sure why not but as a sub Id be wary!

how long have you been an RCA?

city side sucks if you have been rural .. been there done that. hated it and came back.
as a casual you are dumped on every time you go in .. and you get paid as little as possible -11$ for me when i was doing it. you get the worst part of each route and usually you get to stay after and do collections also.

i thought when they moved to TE's that they were getting rid of casual's though... you need to check this before you get your hopes up...

a right side is wonderful if you plan on staying anRCA. less stress on you neck and back and knees and ankles. try to get a 4 cylender if you can ( way less gas you have to put in ) i drive a right side saturn stationwagon. it is wonderful , i fill up about half as much as everyone else in my offfice ..
as far as going regular. i have been an RCA now for 8 years and 5 months. i am next to go full time but dont really know when it will happen. you basically have to have retirement , quitting, firing, or death. in my office i have had a death and a quit. so it can happen but you need to settle in for a long haul.unfortuanatlly.

hope some of this helped