Pool should be fine, it has been done before.
Ditch the plumbing that came with it and buy a high effecient/heavy duty pump to filter and areate. Addition water flow can be as easy as a couple of high output air stone/diffusers and a good air compressor. Linear diaphram compresors are good, rocking piston compressors are better, but require a little extra maintence with the air filters. Pricing is big difference in them, but a little search should help find a good effecient model with a warranty.
Use some tester goldfish or other cheap fish to see if water is safe. RTC might be a challenge to keep unless you plan on heating....