One choice is the Manfrotto 028B that has a stated payload of 12Kgs/26Ibs. However the Universal Astronomics website says that photo tripods with center column should be considered at half their stated payload so I assume it to be 13Ibs for Mount + OTA.
Another choice is the Vixen Al-130 tripod. According to Astronomics (not UA), it can load a GPD2 and a scope up to 13.2IBs. I can also use this tripod as a lighter alternative for my SVP mount.
Third choice would of course be to keep using the SVP tripod I already have and bear with the weight, if the other 2 cannot match it's stability.
I intend to use the tripod to mount a C8 and a Megrez 80 on the Astroslew.
Would really appreciate advice from you guys. I can't make up my
mind.

Edit: Forgot to mention that the 028 costs about $165 less than the AL-130 after I get the necessary accesories to allow the Vixen to be used in our latitude for the SVP. Of course it's gonna be much harder to use the 028 with the SVP.
Clear Skies!