That's quite a bit! Do you mean you want to raise the drops by that much from where you are now? If you mean the hoods, you are going to need a longer stem like a Technomic.

If I lay a straightedge on top of the bends behind the hoods and measure down to the stem clamp sleeve, I get something like 8-10 mm. It's similar for both the 132 and 135, and difficult to measure accurately.

Bear in mind that the rando bars - especially the 135 - have a shallow drop, so you will gain some height there.

I would begin by getting the 135 bars and shimming them with the stem you have. If you have access to a trainer or rollers, you can get a decent idea of fit before you go to all the trouble of finishing your cabling and taping the bars.