Hi leenie,
M hotel will provide 70% of guaranteed guests invites. So you see how many extras you need (tis is the amt u need to pay the cost is based on which card design you wan)
Printing of inserts (I dun really rem the price quoted by t-dragon but TnT is 110RM for 200pcs -1side printing-no maps)if you wan map additional 30RM
Btw, when i collected my cards from Tdragon it came with maps. I'm not sure its provided for free or they accidentally gave it to me. Either way, luckily i didnt ask TNT to include map for me.
You can go down to Tdragon to select your card, ask for the insert printing price and decide whether it is worth to travel to JB to do it. I'm for cost saving so i dun mind the trip to JB(take it as a shopping trip also)