JW I am new to ponds want to make sure something I really enjoy before investing a few thousands. Right now would like to keep to a few hundred then if a full year later still into it upgrade.
I bought a 10x15 epdm firestone liner from Amazon ($100 with coupon) with intent if I ever expand it gets reused for a bog. Underlayment about $40, Laguna 600 gph pump about $80 (I have a danner, I wish I got the laguna), cinderblocks $60 (8x4x6) about $60 in pvc for in pond bog, $24 pond master test kit.
Plus you get to design the pond. If you make a rectangle it's about 750 gallons at 2 foot deep. Mine will be just over 400.
It is getting a little late in year to set up a new pond, but doable in a weekend and cycle with light load of fish, be ready just in time for winter.