Get some horse stall mats if you can. I am in a similar situation as you, my issue isn't surface but rather lack of weights. I only have 400 pounds, so deadlifting heavy is out the window. I have just upped my pulling frequency. I pull in some fashion 3 days a week. Mondays I RDL for a 3*8 starting weight was 315, Wednesdays I do deadlifts from a 3 inch or so deficit with the full 400 pounds - just been adding volume because I can't add weight, and Fridays I do snatch grip deadlifts for a 3*3, started with 315. So, if I were you, I would still perform pulls but with more volume than just one heavy set of 5 per week. An RDL would probably work, that is if you can't get some horse stall mats so you can deadlift.