Off-Topic Help 1998 kx80

[tyrrell114]

Hi I have a 1998 kx80 that ive recently blew to pieces. Cylinder was damaged so will be needing a rebore and replate. Im debating wether or not to keep it as an 80 or if I was to have it bored and plated to 100cc will it also need porting work and carb rejetting. Also is it worth bringing up to 100cc or would it run better kept at 80cc. Any help or opinions would be appriciated,
Thanks