I really don't like rollerbar bridges,the one on mine is just a standard Gretsch bridge that came with it from the factory in the 60's.When i was working with Duane last he gave me a great bridge that i put on my 6120 but i've forgotten what its called,i met the guy who makes them and he kindly gave a me a couple but they were way too wide for my 6120,i'll ask Duane for you and i'll get back to you,he's the expert on such matters.
Incidentally my 335 was mended in the end by a genius called Gordon Wells
http://www.knight-guitars.com/
He built me a new neck,saved the headstock laminate and logo,the fret board and frets,the edge binding,the pearl inlays,the machine heads and somehow managed to save the serial number....i have NEVER seen craftmanship like it,its actually better than the original neck,the colour is exactly the same as the original.The man is a guitar god i swear,if you ever need a serious repair he is the man i would recommend without hesitation and i will deffo use his skills again when i need them.I cannot tell you how utterly and totally fucked my guitar was,it was basically a pile of wood chips barely fit for lighting a fire with.I couldn't believe what i was seeing when i went with my Mrs to pick it up.He works out of his home somewhere off the M25 i was so nervous about what i would get back my hands were shaking when i went up to the door,he is really really smashing fella too,his history is amazing as well,he made guitars for George Harrison,Clapton,McCartney,Pete Townsend,Jimmy Page and many many more.I was also knocked out about the price too,i was expecting it to be in the £1000's but it was in the high hundreds which i was more than happy to pay.he saved my favourite guitar for me and i will always be eternally grateful to him for it.I play it every day and will continue to do so till the very very end.Gordon Wells.......i salute you sir