HLE will not be ideal and might be quite low coz only u working as of now. However when flat is near completion, HLE will be reviewed again and plus ur wife's income, confirm loan amt will increase (unless she no intention to work and u holding same pay). There is a bit of risk here like what if you guys are unemployed at that time, which leads to loan amt being unable to increase so will have to use the current HLE amount granted to you now.
AHG wise can apply coz you work more than 12 months consecutively and less than 5k pay. Base on your 2.5k income, can get about 25k-30k.
Stamp and legal fees no problems coz your cpf seems to be sufficient!
So the only worry i think is when the date is near completion, will you guys have enough income for HLE amt to be increased. At that time if combined income more than 10k wont affect also. If earn less than 2.5k, the amount will be base on the HLE amt granted to you now which means have to top up cash for any shortfall.
I think selection will have no prob as well despite low HLE now. Hdb wont know maybe you have large amounts of cash right. Hahaha.
Update us again after your selection alright!