I'm taking the plunge into my first rex and would like to make a mod here and there. I'm mechanically disinclined so am wary about a DIY job. If I find myself in over my head, is there a "Plan B" to fall back on? For example, if I go with a short shifter and then realize that it's over my head, would a Subaru mechanic jump in? I realize it will cost $$ but it beats the alternative of me screwing up the install or having the mod collect dust on the shelf. Any words of wisdom from the Mod Gurus would be greatly appreciated.