I tried to make these charts and figures as close to what is out of the book. I realize that some mechs cost more or less than my outline here but that is what mass production can do and also having the factories to mass produce them in helps to.
 

The 1st thing you need to know is how much money you have to spend.
 

(Chassis)/Weight of Mecha	Basic Cost in Credits	Used Tonnage	What you get*
(Light)/30 ton mech	11,250,000 credits	17.5	Mech with 1,000 pnts Standard armor and all internal structure including engine moving at a base of 90 MPH and standard equipment from the main book.(pg.214)
(Medium)/99 ton mech	26,100,000 credits	44.25	Mech with 1,500 pnts Standard armor and all internal structure including engine moving at a base of 70 MPH and standard equipment from the main book.(pg.214)
(Heavy)/150 ton mech	48,750,000 credits	65	Mech with 2,000 pnts Standard armor and all internal structure including engine moving at a base of 50 MPH and standard equipment from the main book.(pg.214)
(Super Heavy)/240 ton mech	84,750,000 credits	98.75	Mech with 2,500 pnts standard armor and all internal structure including engine moving at a base of 40 MPH and standard equipment from the main book.(pg.214)
(Dreadnought)/300+ ton mech	157,500,000 credits	122.5	Mech with 3.000 pnts standard armor and all internal structure including engine moving at a base of 20 MPH and standard equipment from the main book.(pg.214)

*I figured this out using just base line stuff nothing fancy. This figure does not include weapons or advanced sensors, in other words no to hit bonus's. The reason I did this is this is just a general figure for you to base this off of to figure what size mech you can get with the money you have and still have some money left over to get better sensors and add weapons to your mech.

The second thing you need to figure out is a chasis size, but since RIFTS really doesn't use this I'm giving a general figures here.
 

Frame	Tonnage	Internal Weight	Wpn. Slots*	Cost
Light Mech	10-30 Tons	1/3 of desired mech weight	5-7 Slots	125,000credits/Ton of total mecha weight
Med Mech	31-100 Tons	1/3 of desired mech weight	6-8 Slots	150,000credits/Ton of total mecha weight
Heavy Mech	101-180 Tons	1/3 of desired mech weight	7-9 Slots	225,000credits/Ton of total mecha weight
Super Heavy	181-299 Tons	1/3 of desired mech weight	8-10 Slots	275,000credits/Ton of total mecha weight
Dreadnought	300-500 Tons**	1/3 of desired mech weight	9-11 Slots	450,000credits/Ton of total mecha weight

* The reason for a variable Wpn slot is the lower end of the mech scale gets the lower slots the higher end gets the higher slots.

** I would probably not allow anything over 500 tons and that is really pushing it for any rational DM.

page figuring your armor.

To index.