Spend some money on a proper tune up, and just ride what you have. Figure out after this year, how much you rode, and how much you are planning on riding.
I've ridden in RD, and TBH, basically count on driving somewhere else if you want to progress anymore (probably after the first year). While the trails in RD are great for a quick run (1-2 hours), they aren't super challenging, and you'll end up doing hill repeats just to get some elevation. (the only reason I ride in RD, is my inlaws live in RD, and I can escape for a few hours for a quick ride).
Basically, spend a year and figure out if you're willing to commit to this "hobby".
(not trying to turn you off of it, just realize that you may end up driving far and often to do some challenging rides).
I'm pretty spoiled here in Calgary, not only do I live 2 mins from fish creek, but I'm 25 mins from West Bragg/Moose. I've got a ton of great options super close.