Save your pennies and stroke your engine later - it's probably the best mod going; in terms of power/dollar, overall reliability, and useful power.
Bored throttle bodies (according to reports from the field) make the trottle response a little quicker, but that's about it. The OEM throttle body (even on RENIX...) will flow enough to keep the engine fed - even a stroker. Larger injectors are only really useful when you've increased the engine's basic displacement (bored/stroked,) forced induction is a lot of work (especially turbochargers!) and getting happy with giggle juice can make you end up eating engines like popcorn.
Just hold onto the $50 you've got, and add to it as you go.