OK, I want to build a long range hunting/target rifle on a Stevens 200 action I have. Would I be happy with the accuracy if I build the rifle myself using off the shelf parts (e.g. trigger, barrel, stock, etc.) or should I go the route of a semi-custom gun (e.g. blueprint, open action, trigger, barrel, brake, stock, etc) ? I figure I could build one for under $1000 myself or go with a semi-custom for $1500 - $2000. Undoubtedly the custom gun would shoot better, but would I be disappointed in one I built myself, assuming I have the mechanical apptitude to do it?