Some boxes of my book collection were stolen in a recent move. One book I realized wasn't in my index (and was looking to reread) was one about a planet surveyor who is hired to undergo a type of bio-forming by a extremely rich space mogul. The process is performed in secret at the employer's estate. The surveyor runs into the mogul's beautiful yet immature and rebellious daughter who decides she's interested.
The now bio-formed surveyor heads out to this inhospitable and remote planet where he discovers the planet is an impossibly rich treasure trove of resources. He is supposed to send back samples and reports via a routine shuttle visit. He attempts to hide what the planet really is and keep them from ruining what he has. Always a loner, he's reveling in his new form and "kingdom".
Physically he's now extremely strong with golden skin and reddish hair. He has a bit of a mountain man vibe to him/Robinson Crusoe by design. Into his little garden of Eden comes, eventually, the daughter. She's blackmailed/tantrumed her way through the same bio-forming processes and "chased the one that got away" down. Initially resentful of her intrusion, he later develops feelings for her and she in turn for him from her initial shallow infatuation and ire at being turned down by him back home.
Other bits and pieces:
He fashions a spear and fights a crocodile-type creature whose hide he learns to cure/process into clothing.
They realize they can never return home and will likely be killed when the father has what he wants.
There is a native people inhabiting the planet.
The richness of the planet is discovered.
The method the father intended to kill them with is turned back on him and the hero seems delighted that they were, "hoist on their own petard."
I REALLY hope someone recognizes this, I've been looking for it daily for over a month now.
Thank you in advance!