need a gauge 4500PSI +

Look in your town and see if you have a ditco hydraulics or moss rubber or many other names for hydraulic stores. I'm lucky and live by a refinery so there are like 5 hydraulic stores near me. Often they are in industrial parks and don't even look like a store until you go inside. Others may just be a desk you ring the bell someone asks you what you need you hand them the part and they match it to proper threads and psi. Best way to deal with hydraulics is to buy at storefront. 
 
Amazon and Fleabay have lots.

https://smile.amazon.com/LIQUID-FILLED-GAUGE-STAINLESS-CONNECTION/dp/B01NCOX9M7/ref=sr_1_13?dchild=1&keywords=4500+psi+gauge&qid=1592412948&sr=8-13

do beware of fleabay, not always what you want, but the gauges on Amazon should be pretty consistent

Thanks guys. I ordered one from Amazon, plus 2 boxes of strawberry protein bars for 26 bucks. Even better, free shipping, and I used my credit card points so even the snacks were "free". 

Mc Master was actually 60 bucks when you checked option boxes like range.