Welcome to Bike Forums.
Posting where you are located might find you a local low pressure store recommendation.

Your budget for a "decent" new carbon wheelset is low. HUNT might get close to your needs.

With the same budget in mind I chose a Mavic Ksyrium wheelset.
Yes the Mavic are alloy and 1575g/pair , Carbon could save 4-8+oz/pair but at what additional cost.
Plus, the Ksyrium uses the "Fore" system and does not require rim tape should you wish to go tubeless.

Barry