DrZoidbergTwo questions:
Pedals are more or less universal right? Like if I go buy deity comps there shouldn't be any fitment issues?
Is there any specific maintenance I need to know about for sand exposure? There's apparently sand in the woods.
I tend to stay with platform pedals for the error margin. Pedals are not something I know too much of, but my guess is no... unless you buy the universal types. Most companies prefer having their own brands of shoes fit their own clips. However, ask the guys at the bike shop, they will know the answer and help you find the right one for you.
Sand itself is not a problem for bearings or suspension. Dust, however, is...but no worries! For the bottom bracket, headset and hubs; a simple wash down will suffice, but avoid using a fine brush to not push the dust into the bearings. Most greases are designed to catch and hold the dust in suspension to avoid contact with the metal on metal. By experience, headsets are done every 2-3 years (until they have some resistance) and bottom brackets will creak and crack... usually every 3-5 years.They are fairly cheap, but use the correct tools if you are going to do them yourself. Ive never had problem with wheelsets so just dont open them up.
For suspension, You should get it maintained every year if budget permits. Dust is scrapped off by the top seals and washed by the fork's internal oil. As long as you keep them plungers scratch free, dont worry about it!
Where sand does cause a problem, is the chain and derailleur. It will get into the guide cogs...but dont worry, its easy to clean with a rag. For the chain, I recommend dry condition chain lube from the shop. It will prevent buildup and keep the chain squeaky clean. Apply some before and after the ride for best protection and best performance. There is a wear tolerance you should be aware of; but they are cheap and changing them is pretty easy, with the right tools. Dont let the chain skip from wear...that will cost you in the long run
If tldr, dont worry about sand, the bike will be fine