According to a Hadith, there are six special amaal of Friday: (1) bathing (2) going early in the mosque (3) going on feet (4) sitting nearer to imam (5) not engaging in nonsense (6) lend one’s ear to khutbah. One who acts upon this Hadith, he has been promised reward of one year nafl salah and nafl fast on every step. Going far for praying Juma salah will bring more rewards. Therefore, it is better for you to go to farther mosque so that you can pray satisfactorily and get more rewards.
As far as praying salah behind Bralewi imam is concerned if his beliefs are tantamount to shirk then the salah behind him will be invalid; otherwise it will be makrroh.
Allah (Subhana Wa Ta’ala) knows Best
Darul Uloom Deoband