The Shulchan Aruch (Yoreh De'ah 244:1) discusses standing up out of respect for a talmid chacham-
מצות עשה לקום מפני כל חכם אפי' אינו זקן אלא יניק וחכים ואפי' אינו רבו
Must a talmid chacham stand up for another talmid chacham?
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Rav Chaim Kanievsky (Doleh U'mashkeh pg.267) was asked if a talmid Chacham needs to stand up for a talmid Chacham slightly greater than himself (there are many levels ). Rav Chaim answerd that the talmid Chacham would need to be מופלג( prominent) . In note 38 its pointed out that מופלג here doesnt mean muflag of the generation,but rather more prominent than those people in that place.
Assuming he carries himself with humility and respects other scholars (perhaps to avoid Yevamos 62b) he may want to employ this similar Talmudic adage.
Yerushalmi, Kesubos 2b (1.1)
אמר רבי אלכסנדרי מיכן שאין קטן רשאי לישב עד שיאמר לו הגדול שב
Rabbi Alexandri says that a smaller person may not sit until a bigger person gives him permission to do so. [Based on he verse in Rus 4:2, וַיִּקַּ֞ח עֲשָׂרָ֧ה אֲנָשִׁ֛ים מִזִּקְנֵ֥י הָעִ֖יר וַיֹּ֣אמֶר שְׁבוּ־פֹ֑ה וַיֵּשֵֽׁבוּ׃ Then [Boaz] took ten elders of the town and said, “Be seated here”; and they sat down.
וַיִּקַּח עֲשָׂרָה אֲנָשִׁים מִזִּקְנֵי הָעִיר וגו' (רות ד, ד), אָמַר רַבִּי אֲלֶכְּסַנְדְּרִי מִיכָּן שֶׁאֵין רְשׁוּת לַקָּטָן לֵישֵׁב עַד שֶׁיִּתֵּן לוֹ הַגָּדוֹל רְשׁוּת.
"Then [Boaz] took ten elders of the town and said, “Be seated here”; and they sat down. (Ruth 4:2)". Rabbi Alexander said: "From here it is that there is no power for the subordinate to sit until the greater authority gives it to him."