A shoe repair shop should be able to fix the broken throatloatch if you have all the pieces.
For a new bridle that won't break the bank, I'd look at Ovation, HDR, Collegiate, Treadstone, or Heritage bridles. All are usually under or around $100.00.
Yep, all are quite nice.
I don't know where the following companies ship, but here are a couple other brands: - Cal-Tack: I still have my first bridle that I bought from them; it's over a decade old and looks brand new. - True North: Has ver nice tack at reasonable prices
I haven't owned very many because I've been lucky that mine don't break often, but I wanted to second the HDR suggestion. I saw a bridle in the store the other day from them and it was DELICIOUS! And under 80 bucks, too. ;)
I was at a trade show this weekend and spent some time touching the bridles. Keep in mind I was just looking at them brand new, and not how they feel when oiled up, or how they hold up to use.
I was not impressed with the HDR Advantage, felt cardboardy. I didn't see any of the HDR higher line, so I can't comment on how they compare. The ones I did like that I believe were in the same price range were Santa Cruz.
My mom ended up letting me tap into my birthday money for my new bridle. I got one from Red Barn Bridlework or something, it's pretty well known around here. The noseband is the softest thing I have ever felt and it looks absolutely gorgeous on him <3