Congrats! First thing i suggest is make good notes of the currrent hammer spring and striker settings. That way you can return the gun to near its original tune, i say near because Hammer adjustments can shift and springs can weaken over time. A chrony is your best friend. I have a few p-rods, some modded to the hilt but the stock one gets the most trigger time ironically and does sit at about a 3 mag tune. They can be tame little plinkers or a beast, depends what you want. For air saving look into the B-Staley o-ring mod, works great, super cheap and saves air but wont be at the top of the power curve. Still need a chrony though to tune. For my pcp journey there was way more value from buying a chrony before a compressor. Some other cheaper mods are a striker change or a shorter hammer spring. Hillairgun.com is my goto for those parts. Buck-rail.com makes a cheap but well made ergonomic forgrip with a pic rail, makes a big difference in grip and supporting off-hand. Trigger can be shoed too, adding a nice feel. Hand pumping did me well for the beginning and will again when shtf. I ended up shooting and tuning alot more and moved to a Nomad style compressor, works great for filling guns directly, still putters along after a few years, but not designed for serviceability or tank fills like others. I now shoot more than the compressor can support, so tanks are in the mix now, but carbon fiber is $$$ and the compressor still tags along on hunts, as does the pump as a backup. If you can get tanks filled, a used recert 3k psi tank from a scuba shop might be a future consideration for a lower cost. You can top off the gun to 2800 and tether when near there. I think it all comes down to your purpose, both gun and air. Hand pump may be just fine for your shooting frequency/volume and just keep filters and orings on hand and add a compressor for convenience when you can. If i were in your boots, would find a chrony first, learn that gun inside and out, as it is, and get the most suitable and efficient tune you can out of it with whatever pellets you are using, then add a compressor or tanks. Fortunately you have a very well documented pistol that has parts galore had all mods and problems virtually exhausted and solved over the years ( precisely why i have so many marauders) so any issues or tips are readily solved or found. Just my 2cents. Happy shooting!