1972 proyect... i need help with 10" rims

[nicoson12]

Hello! i am new here, i'm from Chile and i have been reading a lot on this forum, i have a big question about the rims for my 72'... while my truck is in painting i bought 4 rims 15x10" US WHEELS SUPER SPOKE, so i want to put them all around, the problem is that here i see that most of the trucks use 8" in front and 10" in the back......

will i have issues with the 10" in the front?

Can i put disc brakes in the front with a 10"?

i am also thinking in 275/60R15 Tires all around....

Thanks guys!