Ljonesy90

Hi guys new to the forum looking for a bit of help just brought a onza bird 2010 trials bike never been used or very little no marks,brakes don't feel to good and just would like to no if you can take the v brake off and the front disc and have hydraulic brakes, magura is that something that could fit,would hydrolic brakes be ok with the rims I have? Thanks a lot sorry for the stupid questions.