Would I be right in the way I've separated the text as two different sentences?
「ゆうふくなものたちが すむ街
駅の近くにいる。」 「きん色のものに
せいいを 見せている (。) オタシが 見えます。」
Toritoribeさん has also alluded to this, but no, this is not correct. I believe I've already addressed this, but the correct way to break it down is:
[ゆうふくなものたちがすむ]街。(sentence fragment)
[[（その）駅の近くにいるきん色のもの]に誠意を見せている]オヌシが見えます。
「ゆうふくなものたちがすむ」 modifies 街, forming a fragment after which the thought breaks once.
「駅の近くにいる」 modifies 金のもの, which is marked as the indirect object （に） of 誠意を見せている. This in turn is modifying オヌシ, and the core of the sentence is オヌシが見えます, where オヌシ is modified by everything that comes before it (again, as Toritoribeさん said).
The meaning of オヌシ here isn't immediately evident, but one possibility is that it's a polite second-person pronoun meaning "you" (i.e. the player, or the protagonist--Mario?)
誠意を見せる is also a bit of a vague expression, so I'd need to have more context to interpret it specifically, but it means to display one's sincerity (in some form or another).
Mind you, this whole sentence comes off as sort of intentionally vague "fortune-teller" type speak, which together with the nonstandard notation makes it perhaps (as mdchachiさん says) less than ideal as learning material.
"A town (or "the town") where wealthy people reside. (There,) I can see you(?) giving a display of sincerity to the golden one near the station."
This seems to be the import here, indirectly directing the player to go to a certain place and perform a certain action. There might be another way to interpret オヌシ, but going into more specific interpretations would require further context.
