Ignore the above. You can do almost all null and low sec sites in a Gila. You can earn a lot of money really easily. You can also do a lot of the lower level wormhole sites which you can use to earn ludicrous amounts of isk.
Here is a basic fit to start out. Obviously you need to switch the two resists based on the rats you are fighting. If you're fighting sleepers you should trade out one of the resists for another shield extender and put in an EM ward II.
What makes this fit great is that if you have a mobile depot in your cargo you can deploy it and change your low slots for Drone Damage Amplifiers. This will increase your dps when there are less rats on the field.
[Gila, Gila PvE RL Passive TANK]
Beta Reactor Control: Shield Power Relay I
Beta Reactor Control: Shield Power Relay I
Beta Reactor Control: Shield Power Relay I
Beta Reactor Control: Shield Power Relay I
Large F-S9 Regolith Compact Shield Extender
Large F-S9 Regolith Compact Shield Extender
Large F-S9 Regolith Compact Shield Extender
Large F-S9 Regolith Compact Shield Extender
Thermic Dissipation Amplifier II
EM Ward Amplifier II
Prototype 'Arbalest' Rapid Light Missile Launcher, Caldari Navy Scourge Light Missile
Prototype 'Arbalest' Rapid Light Missile Launcher, Caldari Navy Scourge Light Missile
Prototype 'Arbalest' Rapid Light Missile Launcher, Caldari Navy Scourge Light Missile
Prototype 'Arbalest' Rapid Light Missile Launcher, Caldari Navy Scourge Light Missile
Drone Link Augmentor II
Medium Core Defense Field Purger I
Medium Core Defense Field Purger I
Medium Core Defense Field Purger I
Valkyrie II x2
Hammerhead II x2
Also as a side note Saving up for a tengu and taking it to null before understanding how null sec works and how to travel it safely as well as where to run sites in it safely would be completely idiotic.
Sinnish Saken wrote: Don't assume that there isn't good isk to be made with high sec combat sites. I've got roughly 22m SP and still farm them regularly. It has funded plenty of null sec capable ships.
That's actually incorrect. Do assume that there isn't good isk to be made with high sec combat sites. You want to make money with higher bounty ticks, more loot drops (And better), and more BS sized rats to salvage go to the higher sites in Low/Null. High sec is trash money.