Hi!
Empty plot not necessary I can hold him for as long as you want.
Yes you can bid that way if would like. Because the majority of your bid is TBT I will accept a bid if its topped up with NMT. However if someone else can bid the same amount of TBT or more you will be out bid as I will prioritise TBT offers over NMT. I will revise this on a case by case basis if anyone else would like to bid this way!
Can you confirm that you want to bid 800 TBT and 50 NMT?