Jake,
Yes the relief valves will work. However, the one without the driveshaft in the picture, are manual valves, and there is a lever and flapper on the tunnel cover that pushed the buttons. The one labeled L and R are automatic valves. You can switch them, just if you need to push the tractor with it not running, makes it difficult without the flapper/lever. Otherwise they will work just fine. Just comes into play if you have to push it..
The Stripe on the tower should be blue with white letters..... here is my all original 1450 for comparison.... (factory stripe)
This is one of Dad's and these are replacement decals after the tractor was repainted (he bought it this way, we didn't do this one) My opinion, some of the replacement decals are slightly too dark of a blue...... these are fairly close, bit some are much darker than these.....