I need a little advice.

The open stand Delta 14" bandsaw that belonged to my father has a bad motor
on it. Not sure what happened in storage but it overheats in a hurry. It
sounds horrible too. Run it for about 30 seconds and you can smell the
motor insulation cooking. In that short period of time the motor case get
uncomfortably warm too. This occurs with the belt off and yes it spins
freely. The motor nameplate says: "HP - 1/2B" (????) Since this is a 1/2
horse motor maybe it is time to upgrade to a 1 horse. I see some Delta
band saws come with 1.5 hp motors. Should I go all out and get a 1.5 hp
motor or is that overkill?

I need new tires for the saw. Are the Delta tires the ones to get?

My father put a household light switch on the saw which really looks hokey.
Any recommendations for an suitable on-off switch? Should I order a new
one from Delta or is there something else that I can get that is better.

I see that there is a release lever version of that same 14" saw. Should I
get the parts to upgrade the beast? That spring loaded tensioner is a bear
to adjust everytime I go to change a blade.