First of all I'm posting this here because I'm having little issues with my fg so sorry if it's in the wrong place, I'm new to Bike Forums.
That being said I'm looking to buy some parts over the internet and I don't really know what's good and what's not, I used to take old parts and put them together until it breaks but now I'll put some money on it.
I need a new bullhorn handlebar, bar tape, crankset, bottom bracket and pedals.
Toss up between the bars. Though, it looks like the Trans-X may be a little longer in the horns. So if you have long arms, it may be a little more comfortable. Running off stock photos, no first-hand experience. Other than that, black or silver. The trans-x might be slimmer in diameter now that I think about it. Think it's an TT-base bar.
Bottom bracket-wise. Just get a 107mm bracket like the cranks require. A 110mm Shimano BB is doable, but you'll probably spend another $10 replacing that plastic cup.