Found this on Amazon, $15 for 48" of aluminum T-Track you could mount on your gunnels to slide and/or position rod holders and other fishing accessories around. The design uses the head of a 1/4"-20 hex head bolt slid into the track as the fastener.
https://www.amazon.com/Orange-Aluminum-OA7150-48-T-track/dp/B00VS25W66/ref=sr_1_2?ie=UTF8&qid=1458920213&sr=8-2&keywords=t-track+aluminum
Not sure I'm going to add some, but a recent post got me to thinking if there was any DIY options out there, vs. the boat makers like Tracker, Lund and CrestLiner who have their own versions as OEM installs.
https://www.amazon.com/Orange-Aluminum-OA7150-48-T-track/dp/B00VS25W66/ref=sr_1_2?ie=UTF8&qid=1458920213&sr=8-2&keywords=t-track+aluminum
Not sure I'm going to add some, but a recent post got me to thinking if there was any DIY options out there, vs. the boat makers like Tracker, Lund and CrestLiner who have their own versions as OEM installs.