It depends what kind of inductors, pots are you looking for and what wah pedal are you trying to built..
The ICAR pots for the original McCoy can only be purchased online but the stocks are very limited. WMUM and I believe Randolf has the Dunlop Reissue Reds and Yellows. Alternatively, you can purchase those online and it'll cost around the same price. Locally, there's a very limited inventory of wah pedal parts since the market is very niche. The price offered is also similar to those offered on online sites.