I do think this would be best for the Travel Trailer Forum but I will say that we have been very happy with our Rockwood Signature Ultra Lite from Forest River RV.
This one may well work for you and should be no issue for your K2500 (I pull a similar TT with our Suburban 2500 w/ 8.1L and 3.73).
Posts are for entertainment purposes only and should not be construed as endorsement or recommendations. YMMV!
Steven & Stacie, plus 2 ('02 & '07)
'04 Suburban 2500, Quad Seats, 8.1L, 3.73
'09 Rockwood 8313SS
Texas not just a State, but a State of mind!