New to me Rancher

Hey guys, new to the forum as I just picked up an 06 Rancher.

Its a 4×4 with foot gear change (i’m hesitant to call it manual as there is no clutching required) its non push button gear changing….

Its my understand that flavor did not come with the electronic dash, and that there is no way to put a stock one on. Because of this, there is no way to know the number of hrs or miles on the machine.

Are both of those correct?

It needs brakes, I’m going to order the disk brake conversion kits.

Any recommendations on which trail tech "dash" computer to get?

Any other maintenance issues i should look to address? (oil change etc)

Primary use will be around my hobby farm doing farm stuff. Only very occasional trail use.