Suit fitting: pinching in chest material and how to fix

Hey everyone...first off I'd really like to add the disclaimer that I am well aware that this post looks terrible and however much it may seem like a humble brag, that's REALLY not my intent.

I've been looking to add another suit to my wardrobe for B-school, and I've been having the same problem with every off the rack suit that I try: since I've been working on growing my chest over the past few years the chest material pinches up in my chest, making a noticeable inverted "V" shape in front of my chest. I have previously had one bespoke suit made(navy with subtle pinstripes) where the shop's owner was able to correct my problem with the aid of the brand's tailor( a trunk show).

Catch is I'm in the typical B-school student's financial situation(not bad, but no extravagant expenses) so I can't afford to drop a grand on a bespoke suit again.

Would I be better off biting the bullet on a single charcoal suit that's bespoke or is there any chance that a good tailor could correct the problem with an OTR?