Unless your home depot has guys waiting outside to help I would personally buy a cheap jigsaw like this one and make it yourself.
I feel like if you tried to hire a carpenter the cost would be above the price of the tool.
I got a Black and decker jigsaw for $30 from amazon and it's been awesome, check out the reviews.
https://www.amazon.com/BLACK-DECKER-BDEJS600C-5-0-Amp-Jig/dp/B00OJ72LHK
$18.95 + $4.65 puts him at $23.35