Since Plains recreation is going on atm, and am unclear if I'll myself finish my own take on the project, here is the latest version of PL I have built. Unlike the previous version based on matching terrain to the PL max scene foliage heights, this terrain was generated by myself in tandem with machf, using various heightmap methods + the Tres-beta(s) IT map table heightmaps. As well is included a south-gate route from IT into the southeast corner of PL, where I worked with Tatu to match up with the walkthrough, creating a puzzle to fit. Other details abound, have a look for yourself. Enjoy -
https://app.box.com/s/dwy7y9ke20a6yb0bmqb1ebzzrfri6wyy