YoAndy :
Nothing against your build but those heatsinks look a bit weak, MSI Tomahawk is a pretty solid board. But if money is a problem i guess cheaper is always the answer.
It's all about priorities at tight budgets. Given OP is calling himself a "beginner" and running with stock cooling, I'm thinking that a high voltage OC running intensive workloads 24/7 is a pretty unlikely scenario. Plus it's an R5, so lighter draw than the entire R7 lineups. I'd be surprised if that power delivery gets pushed too hard and would, personally, have no issues whatsoever with that board. I reckon the $30 you save is better spent on faster RAM, and/or contributing to squeezing in an SSD like I've done.
Obviously not everyone will see it that way, and if OP was using aftermarket cooling and intending to hit 4Ghz on an R7 I'd be 100% with you on a beefier board. But my perspective is that Pro4 will do the job just fine.