Change of fuse box

[shippers]

Hi all. A little advice for a newbie, please. My R4 is currently fused with an 8-way Hella torpedo fuse box, which I'm guessing is the original. Unfortunately some of the contacts have lost their spring so they're not holding the fuses as well as they should so I intermittently lose lights or indicators, which isn't great. I'm wondering how hard it would be to change this fuse box for the same model? Is this a complex wiring job or just a case of methodically re-wiring as per the original into a new box? Or, should I go for a more modern blade fuse box and would this wiring job be easier/harder?

Would appreciate any thoughts/advice. Thanks.