The valve is an Ok postion for you ? make sure stand there with you hand on it for some time The reason I say that is my shoulder cramps when my hand is raised above my shoulder for any time longer then about 1 min bad rotator cuff along with other stupid stuff. Now imagine a hose about the size of a shop vac hose and others hanging bending etc there are we still happy?? What height is the reaction plate off of the gorund? seems like about 28-34 inches is about right for height, figure kitchen counter top are 36" tall if I remeber right, just an example. If you need hyd hoses contact me I am sure I can help 1/4 3/8 1/2 5/8 or 3/4 Most suction is wire re-enforced just an fyi it ahs about a 6-8 bend radi if I remember.
When you fab your tank you can use a 90 shut off then a 90 to make your turn and get your 180 turn done and also take care of the shut off issue If you need a pic of the fittings I can try to post one if you would like