Dish 1000.2 0n dish 500?

[LilBit]

Just aquired a dish 1000.2 with no lnb's or brakets and was just wondering if i could take the the reflector arm off an old dish 500 and remove the arm from the 1000 dish and install just the 1000,2 on the 500 lnb arm, if so will everything be in the correct focal postion without modification?

Basically what im wanting to do is remove the four bolts holding the dishes to the lnb arms and put the 1000.2 dish on the 500 arm .