It seems that wooden letter tiles are very hard to find and expensive when you do find them. They are popular among scrapbookers and others doing crafts. As a compromise I've used TGC's shards; 0.75" square cards. The advantage is I'm able to print on both sides, so each player has a distinct back for sorting tiles. The disadvantage is that they are only the thickness of a playing card, so they may be difficult to pick up and move.
Other than that, I have found one issue. I ordered a 150-second timer. In hindsight, that seemed too long of a time limit. When I tested the timer, it actually runs closer to 2:45, so that seems way too long. I've updated to a 2 minute timer for future editions.
I'm sure there will be other kinks to work out. Now that I have this spiffy new version of the game, hopefully I can find people to play it.