That's the first time iv seen that set up ..
It's 100% up to you, For only $20 the problem will be gone, but with the OFNA 250cc mid tank you can spend just a tab over $20

But with the OFNA 250cc you get 250cc's of fuel instead of the stock tank witch is 160cc and that new era models tank 125cc..
here is a breif idea on what you need for the OFNA 250cc mid tank ::
FLM45100 - Extended LCG TVP's - $60
FLM45110 - Extended Skid Plate - $14
FLM45700 - Motor Plate - $11
FLM46000 - Servo Mounts x2 - $8 /ea
FLM47000 - TVP Brace x2 - $3 /ea
FLM48000 - Drag Link - $7.50
RPM80052 - Receiver Box - $9.49
ASC89005 - Antenna Mount - $9.49
OFN10270 - Fuel Line Clips - $3.79
OFN19504 - 250cc Fuel Tank - $14.99
OFN30287 - Tank Posts - $4.79
OFN10721 - Linkage Kit - Yellow - $7.59
OFN10701 - Linkage Sliders - Yellow - $2.89
HCAM2000 - Servo Extension - $4.29
HPI100323 - Rush Battery Box - $7.69
PRC125 - 250cc Mid-Tank Plate - $34.80
PRC180 - Rush Battery Box Plate - $8.00
see just a tab over $20 haha..
but in the end you will get the looks and the performance ..
and welcome to the forum.