Hey ab,
I've sheered the pins in the Roe kit twice and after talking with Sean he recommended using some solid dowel pins that McMaster Carr sells it was either 98380A514 or 98380A512 I can't remeber if they were the 1-1/2 or the 1-1/4 that I used (I Think it was 98380A514) but I do know they were 1/4"dia. You can see right away when you compare them how much heavier and stronger the solid pins are plus you don't have a seam to contend with like the roll-pins do. I have had 4 months of trouble free driving and have put the pins to the test. So, I'd say they worked well. I believe they're $6 for a pack of 10, I'd send you some but I mis-placed the bag. Also, you could still use Sean's kit for drilling just order the hardened pins.
~Matt~