i once had to get my city's oil pan removed after i ruptured it in the middle of a desert sumwhere in lower punjab by hitting it on a brick at 120km/h at 10pm on a winter night
well, as the gaskit wasnt damaged i used the same after getting the pan fixed. black colored sillicon was used to fit it back and to this day (3 yrs passed) its working fine.
As for ur car, the best bet would be to get the gasket from Honda 2 or 3s... peace of mind means a lot! but i do believe that there wud be some good quality ones available in the market.btw, as informed by @coolsmart, 800rs isnt much n i'd say go for it. u dont need to get anything else, just check the oil pan drain nut washer, if its okay, no oil shud be seeping frm it. otherwise change it.rest, u dont need anything...