Help with Donkey Kong

[Atarifever]

Hey, so I decided I wanted to get the Donkey Kong 7800 world record this year. However, my best score is only just over 100,000. The world record in 616,200. So, I have a lot of work to do. Anyway, anyone have an tips I can use? All the DK guides obviously don't work with 7800 DK, so I have to figure timing out myself, so any advice would be appriciated. I think I'll start a Blog on AA to document the attempt, and I am setting myself a one year limit from the first play (probably starting tomorrow). Anyone ever get anything close to the record? Anyone ever unofficially beat it? Anyone know if that's the maximum possible? Thanks.