mobile detailers pressure washer hook to tank

[215Detailing]

I think my gas HONDA engine pressure washer is about to go. looking for something the won't break the bank, can pull straight from a tank and may be repairable when or if needed with short down time...Maybe a good horizontal semi pro model
make
model
pump and type example; CAT TRIPLEX
price
and where to purchase

 

[215Detailing]

Pressure washer tank set up = https://www.youtube.com/watch?v=07yUblwlsMw