Remote tank setup

I’ve been gone from the forums for a bit and have just recently pulled out my guns and had a lot of fun with the kids with them.

I have a few questions…

What are some of the coolest looking accessories out there IYO and where can I get them?
What are some of the most functional mods/accessories out there IYO and where can I get them?
One thing I’m very interested in is using a 4500 psi paintball tank and a remote line. I can carry it on my hip or back and it would make it considerably lighter and give me a lot more shots per fill. Would I need a regulator and where would I get it? My gun seems most consistent around 2600 psi.

On a whim…anyone have a 40-45 cal bigbore hunting rifle that they want to get rid of? I have an AAA .25 Condor in Blue that I just my trade for one… plus cash for the right rifle.